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# Does ruler float on water

### Do a plastic ruler floats in water? - Answer

It floats because the water is heaver then the bottle. bottle is light so it floats. No,It floats because the particles are free to move inside but with water in it there is not enough space for.. However, if you place a long wooden cylinder in water, it floats on its side with the circular cross-section perpendicular to the surface of the water (see Figure 1). Figure 1. Illustration of a floating disk (A) and a floating cylinder (B). Using a pencil and a ruler, draw a straight line on a piece of paper..

A fish tank half full of water; A variety of small balls such as ping-pong, squash, racquet, tennis, and golf. Make sure that some float and some do not. For the list given the golf ball sinks. Scale for weighing the balls and ruler for measuring their diameter (optional) Demonstration. There are a number of ways to run the demonstration sharp edge of the ruler parallel with the flow and the again with the ruler turned 90 degrees (Fig. 2). The difference in the height of water is the head differential and using Table 2, an estimate of the velocity (feet per second) can be made. From there, follow the same formula as with the float or tracer method, i.e., multi Will wood sink in water? In what circumstances will a wood log not be able to float on water? First off, let's see why woods can float on water, and we will see if it is always true. #1. How does Wood Float on Water? #2. Will Wood Sink? #1. Why can Wood Float on Water? Usually, if you throw a wooden plate or a wood stick into the lake, it floats

Today i see if a pencil floats The high surface tension helps the paper clip - with much higher density - float on the water. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. What rock can actually float? The volcanic rock is called ' pumice stone ' and is very lightweight, meaning it can float on water No, an object will only float if the water it displaces weighs more than the weight of the object itself. In the case of the plastic bottle, say if the bottle is filled fully with sea water, then it would weight more than the water it displaces (because there's the weight of the water plus the weight of the bottle), so it will sink Subscribe to my 2nd channel: https://youtube.com/channel/UCq2UyupGA33N6ezKKRgKHfQMake sure to watch bloopers at the end of the video! :)Easy trick how to mak..

The reason is that the water is in the formof tiny water droplets and ice crystals. Justlike tiny dust particles suspended in air, thesedroplets and crystals are far too small to feelthe effects of gravity. Look at the smallestmeasure on a ruler: one millimetre. It wouldtake hundreds of cloud droplets lined up nextto each other to reach this width Why Does Wood Float on Water? Wood generally floats because it's less dense than the water it floats on. However, some woods are denser than water and will tend to sink. Wood is made of individual fibers, and there is some space in between these fibers. Because of this, most woods will naturally float How heavy an object is does have something to do with whether it will float or sink. But there is more to the story. Try this activity to find out what causes an object to float or sink in water. equal amount of water? Do you Materials: • Pencil • Masking tape • Metric ruler • Two tea light candles • Clay • Water • Cups Procedures: 1 Yes and no. Rubber bands can float and sink in water. float on the water for awhile and then will sink. But not all the time the rubber bands will float on the water for awhile. Sometimes it will..

### Buoyancy of Floating Cylinders Science Projec

Liquid level sensors or float switches are used to monitor liquid levels in tanks or other vessels and are designed to react according to predefined high or low levels. Some of the ways they react are to: Warn of high or low-level conditions, start or stop pumps, open or close. Read More >. Downloads. Press Release -3/18/2016.docx Do not empty out the water that has collected in the Overflow Tube. Step 2. You will need to carefully pour the remaining water, from the overflow tube, into the measuring tube, record it, and add up the totals. The easiest way of doing this is by pouring the water into the measuring tube a little bit at a time • a ruler • a bathroom scale . Fill the aquarium, bathtub, or trash can 3/4 of the way with water. Place the 13 pound or heavier bowling ball (CAREFULLY - DO NOT DROP) into the water. Does it sink or float? Is this what you expected? Now CAREFULLY place the 11 pound or lighter bowling ball into the water. Does it sink or float Set Up the Sink or Float Experiment. plastic tub (it's best if it's clear) water. school supplies: pencil, colored pencil, paperclip, tape, gluestick, crayons, pencil sharpener, marker, eraser, rubber bands, ruler, pen, chalk, binder clips..anything you can think of! We grabbed a pencil box and all the supplies we had on hand

Goplus Inflatable Fishing Float Tube, with Storage Pockets, Fish Ruler, Adjustable Straps, 350LBS Load Bearing Capacity 4.4 out of 5 stars 333 \$145.99 \$ 145 . 9 120 seconds. Report an issue. Q. What is the formula for density? answer choices. density = mass x volume. density = mass / volume. density = mass + volume. density = mass - volume This float tube does work as advertised and was easy to set up. it is very lightweight, especially when compared to my Fishcat 4. It works as an inexpensive float tube. It has a lot of storage and worked fine for fishing out of. It is a light duty float tube so it won't last as long as a heavy duty float tube These include balloons, a medium sized beaker, a cm ruler, a hot plate, aluminum pans ice water and safety gloves. Put on the safety glasses. You may wish to include a camera and take photos of the procedure and the observations of this experiment to include in your final report and your display at the Science Fair FLOAT TUBE ACCESSORIES Extras for a Day on the Water K-Pump K-100. PUMP: The K-Pump K-100 (\$78.75; k-pump.com) is a tough, durable, fast-action pump that allows for stand-up pumping and stows compactly.A less expensive option is the Inflatable Watercraft Hand Pump from Classic Accessories (\$28.95; classicaccessories.com)

They will sink and float when added to water with a few tsp. of baking soda mixed in as the vinegar and baking soda react to form carbon dioxide gas. To make color-changing orbs, dissolve 2 Tbs. agar or 5 packs unflavored gelatin in 1 cup red cabbage juice (magic potion) and follow directions for making orbs Cumberland Inflatable Fishing Float Tube. Check Price. Bottom Line. A float tube that sits high in the water, has a high weight capacity and several nice features. Pros. Holds up to 350 pounds. Mesh apron for stripping includes a fish ruler. Seat sits a little higher off the water to help keep you dry

What does the Greek book The Periplus of the Erythrean sea describe? The Periplus of the Erythraean Sea describes the trading empire of Himyar and Saba, regrouped under a single ruler, Charibael (probably Karab'il Watar Yuhan'em II), who is said to have been on friendly terms with Rome: 23 5. Pour water into the second container with the ice resting on the clay (be careful not to disturb the ice cubes) until the water levels in the two containers are approximately equal. 6. On their Sea Level Rise Worksheets, have students record initial measurements of water height (in mm) using a ruler So why does the orange with the peel (the heavier one) float and the orange with the peel (the lighter one) sink? The secret to this experiment is density! Density is a measure of the mass per unit volume of a substance. Water has a density of 1 g/mL (g/cm3). Objects will float in water if their density is less than 1 g/mL Does a dead human body float in water? As a general rule, yes. A cadaver in the water starts to sink as soon as the air in its lungs is replaced with water. Once submerged, the body stays underwater until the bacteria in the gut and chest cavity produce enough gas—methane, hydrogen sulfide, and carbon dioxide—to float it to the surface like. Ruler . Water . A variety of objects of different sizes found around the house Then take the object out of the water . If the object floats, draw the object in the 'Float' section. If it sinks, draw it in the 'Sink' section. Continue to test all your item

Water Syringe or pipette Ruler *A small electronic scale is best. Good, inexpensive scales can be purchased from Now for the question: Does the pool's water level rise, lower, or stay the clay into the bottom of your boat and float your boat in the pan of water. Make sure that it floats stably. 3. Cut a straw in half and stick it. Does it Float or Sink? Materials you will need: • Nail • Water • Sink or bucket • Pencil • Raw egg • Ruler • Apple • Toy Boat • Paperclip • Rubber ball : Steps: Try this experiment as a project. Which of the following items do you think will float and which do you think will sink?.

### Buoyancy and floating balls

• How does the Earth's crust float on the Earth's mantle? Materials. 2 blocks of wood (1) 10cm x 10cm x 2.5cm (2) 10cm x 10cm x 1.5cm big bowl of water metric ruler 25 metal washers. Procedure. 1. Create a data table in which to record your measurements for block 1 and block 2
• • Ruler • Tape • Calculator • Scrap piece of paper and pen or pencil When you first put one of the boat hulls on the water, it should float because its total density is less than that.
• Take your icebergs from the freezer and remove the plastic bag and balloon. Place your icebergs on the sink and measure their height. Place the icebergs in the bowl, bucket, or tank. Measure how much of the iceberg is floating on top of the water. Height above water ÷ total height x 100 = percentage of iceberg above water
• ium foil barge that can hold the most pennies, experiment with what floats and sinks and why, explore the relationship between density and buoyancy, and more! My lessons are geared toward 4th-5th grade level children and their siblings
• Drop a paper clip into the water. What happens? Next, try to gently lay a paperclip flat on the surface of the water. If you are very careful you should be able to get the paper clip to float! Be patient! Now, touch a Q-tip onto the surface of the water an inch or two away from the paper clip. Does the paperclip move? Remove the Q-tip

hot water floats on cold water so there is no convection. water at the top that is heated stays at the top and doesn't disperse to the bottom of the container where the cold water is. b) Convection dictates where the water pipes attach to the container. Why does the ruler's frequency of oscillation decrease when you extend more of it off th 6. Water Hyacinth. Water hyacinth is a free-floating perennial aquatic plant native to tropical and sub-tropical South America. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 meter in height. The leaves are 10-20 cm across and float above the water surface water. Does it float? Explain the reason for what you observe. If the can is submerged right-side up such that the can fills with water, then the can would sink because the overall density of the can would be more than that of water. 6. An object is both heavy and made of a dense material. Will the object float or sink in water Water; Medicine dropper (optional) Ruler (optional) Once the water has settled, put the raft onto the water surface and let it float. Make sure the sponge piece stays in the raft's square cutout Check out video of a stream of water being bent - a plastic ruler is used in the demo. The stream of water bends due to the polarity of water molecules. video from: Noel Pauller Here is video showing how a paperclip can float on water - it's actually being held up by the hydrogen bonds formed between water molecules which give water its.

average (in science) A term for the arithmetic mean, which is the sum of a group of numbers that is then divided by the size of the group.. buoyancy The ability to float on or rise up within some liquid or gas.. chemical A substance formed from two or more atoms that unite (bond) in a fixed proportion and structure.For example, water is a chemical made when two hydrogen atoms bond to one. Find the Perfect Float for Relaxing in Your Pool at Lowe's. The sun's out, and the weather's warm, creating the perfect conditions for a pool day. But before you jump in, having pool floats on hand can make your time in the water that much more fun and relaxing

### Wood Always Floats on Water? Not Really! See Woods that

Use a ruler to measure the foil. Make a boat using only the 9x10 sheet of foil. Fold and shape as needed. Remember surface area! Name your boat. Give it a fun and exciting name. Acquire water. This can be a bucket full of water, or a sink or a bathtub full of water. Fill the vessel/sink/tub with water. Water should be about 3in from the bottom TheEﬀectofSalinityontheHeightanEgg Floats\$\$ • Presented(by:(Amber(Barton,(Anelize(Core,(Will(Gow,(Bri9ney(Kerwin(and(Molly(Mueller The salt makes the water denser than it would be without the salt. When salt is dissolved in water, as it is in ocean water, it adds to the mass of the water and makes the water denser than it would be without salt. Because objects float better on a dense surface, they float better on salt water than in fresh water. Have fun with this experiment Just look at a ruler and see the centimeter (cm) marked on it. This is actually a survival mechanism for these birds in that fat is light in weight as shown by the way oils float on top of water. If birds stored energy as carbohydrates instead of fats, and then tried to migrate long distances like from Goya, Argentina, to San Juan.

### A pencil-Does it float - YouTub

• Float the boat in the water , being sure that the water has no soap in it. Drop a tiny piece of soap, scraped of f the bar , into the center of the boat. The boat will zoom about on the surface, powered only by its soap motor . Here again, the boat is not being pushed forward by the soap. It is being pulled forward by the surface tension of th
• Also, this was the first time the disciples are said to have worshiped Jesus. In Matthew 2:11, the magi from the East worshiped Jesus. Later, a leper is said to have worshiped Jesus (Matthew 8:2). A synagogue ruler does the same thing in Matthew 9:18. But this is the first time the disciples worshiped Him
• the ice cubes are more dense than the water. the water is more dense than the ice cubes. the water is more dense than the glass. the ice is more dense than the glass. Tags: Question 10. SURVEY. 30 seconds. Q. Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3

### FAQ: How can a paperclip float on water

• Cubic feet per second (cfs) is one of the key indicators of river or creek conditions. The mathematical formula is: river width x depth x speed (flow and gradient) = cfs. Cfs readings are taken at select points along rivers, and readings vary with location. As a general rule, the higher the cfs reading, the more water is flowing past that point.
• Gather the necessary materials. Pour water the bowl, bucket, or tub until the water level is about 3 from the bottom. Mark the water-line on the bowl, bucket, or tub. Place the ball of clay into the water. Record the results including the amount in inches that the water raised above the water-line. Mold the clay into a boat
• Check out video of a stream of water being bent - a plastic ruler is used in the demo. The stream of water bends due to the polarity of water molecules. Video from: Noel Pauller Here is video showing how a paperclip can float on water - it's actually being held up by the hydrogen bonds formed between water molecules which give water its.
• However, they all have different masses. Which of the three cylinders will float in water? (Hint: Density of water = 1 g/ml) Cylinder #1 10 grams Cylinder #2 4 grams Cylinder #3 7 grams. A ruler and a triple beam balance. What tools are needed to find the density of a rectangular prism? Inner Core, Outer Core, Mantle, Crust, Atmosphere
• The nougat center has a lot of tiny air bubbles whipped into it, creating little pockets of air to keep the density low so it floats on the surface of the water, too. Like a 3 Musketeers, the SNICKERS has a whipped nougat center but the pockets of air it contains aren't enough to overcome the higher density of the peanuts, caramel, and chocolate
• Paper marbling is a method of aqueous surface design, which can produce patterns similar to smooth marble or other kinds of stone. The patterns are the result of color floated on either plain water or a viscous solution known as size, and then carefully transferred to an absorbent surface, such as paper or fabric. Through several centuries, people have applied marbled materials to a variety of.
• 2. Measure the length, width, and height of the cube (in cm) using a metric ruler. Record the values. 3. Fill the beaker with water to a volume of your choice (just high enough to cover the cube). Record that initial volume. 4. Carefully place the cube in the water (Don't drop it in or DeMo will SCREAM) and record new volume. 5

What Floats Your Boat (Per student group of 2-4): 1 Buoyancy Homework Sheet FOR EACH STUDENT Use the ruler to measure the change in water level. Record the water level change in the data table Suspend a funnel low, over the water table. Punch a row of holes from the bottom to the top of a 2-liter soda bottle. Attach funnels to each end of a length of flexible plastic tubing. Make it fruit day—provide a whole orange, lemon, lime, apple, grapefruit, coconut, mango Float on. Now, I need to confirm that the Snickers bars were denser in the water bath. And I did this by confirming they need more salt to float than do the Milky Ways. After filling two clear plastic cups with the same amount of water, I weighed each cup to make sure they were equal. Then I submerged each candy bar, one at a time

### Does plastic float on the water? - Quor

1. Try this. Make sure your bowl is clean and free of all traces of soap or detergent then fill it with about 3 cm of water. Gently lower the plastic bread tie so that it floats on the water. Using the matchstick, place a small drop of detergent in the hole at the back of the paper clip. Stand back and break out your yacht shoes
2. g out
3. Rule-A-Matic 12-24-32-VDC Float Switches Model 35A And 40A are by far the most popular choice among professionals worldwide, and the Rule-A-Matic is the best selling float switch in the world. Rule-A-Matic float switches are designed for use with fresh water and salt water ONLY
4. Why do some cans of pop sink while some float? All of the cans have the exact same shape, size and volume. Density is the key to this experiment! Density is a measure of the mass per unit volume of a substance. Water has a density of 1 g/mL (g/cm3). Objects will float in water if their density is less than 1 g/mL
5. This water clock relies on the float stick to show time passing. A float must be attached to the end of the float stick. You must decide on a buoyant material to use for the float. Cork is one material that is easy to find and inexpensive. Since the float will be immersed in water, the float should not absorb water. Cork does not absorb water.
6. Aprons have long been included on float tubes to provide a line holding platform for fly fishermen. Fly flingers need something upon which to coil fly line while stripping in after a cast or to hold shooting line for long casts. If you are of the fly fishing persuasion you should shop for a craft with a well-designed apron. Aprons are useful for non fly flingers too
7. Why does a paper clip float? Basically it means that there is a sort of skin on the surface of water where the water molecules hold on tight together. If the conditions are right, they can hold tight enough to support your paper clip. The paperclip is not truly floating, it is being held up by the surface tension. Click to see full answer

### How to Make a Paper Clip Float on Water - YouTub

1. 10. If a body floats in a liquid, how does the loss of weight (buoyant force) compare with the weight of the body? Explain. 11. What is the density of the irregular solid used in the experiment in grams per cubic centimeter? In the SI system? 12. How much does a cubic foot of water weigh in pounds? 13
2. utes, you can get a perfect fishing float tube. When fishing fish, open the air valve can quickly take off the air and then receive. Storage Pockets & Fish Ruler -- Each side of the float tube is designed with a storage bag, which can be used to place mobile phones, fishing bait, water cup and other items
3. Mark the new water level on the tape. Use the ruler to measure the change in water level. Record the water level change in the data table. f) Remove the clay ball. Brainstorm with your group to design a shape from the clay that you think will float and hold the most weight. Sketch the shape. Reshape the clay
4. Place the bottom of a ruler directly above the liquid in the dish and measure how high the water is not attracted to it. As the soap moves into the water, and the surface tension changes, the pepper no longer floats on top. But the water molecules still want to keep the surface adding salt to water does increase the surface.
5. Why ice floats on water for class 9. Why ice floats on water? Answer - Though ice is solid matter, but it has cage-like structure. Due to this structure, it has a large amount of spaces between its particles. These spaces are larger than the spaces present between the molecules of water. Thus the volume of ice is higher than that of water

### Why Does Wood Float on Water? - Reference

The higher the density of water, the greater the upthrust. This means that ships float slightly higher in salt water, since it is more dense than fresh water. YOU WILL NEED. Testing upthrust: Two chunks of Styrofoam, tank of water, wooden block, marble. Hollow hulls: Scissors, aluminum foil, ruler, tank of water, paper towel, marbles A float rises with the water level and signals the valve when it is time to close. While the tank is filling, a small port on the top of the valve directs a stream of water through a rubber tube that empties into a vertical pipe called the overflow pipe The material should float in the water, with a good proportion of the object submerged. (If it floats right on the top, it won't work.) A ruler ; Water in a large container (a basin, large. • Metric ruler • Pen as this will help prevent the ball from filling up with water. Immediately observe the ball. Does it sink or float? Does it sink or float? What percentage of the. Why does boat floats on water ? The main reasons so that boat floats on water is upthrust. Upthrust : Upthrust can be define as the upward force exerted by liquid and gas that cause the flotation of body. When the weight of water displaced by our boat is equal to the weight of boat the the upward force is seen called upthrust

than water will sink and displace a volume of liquid equal to the volume of the solid object. Such a volume measurement is made in mL. (Remember, 1 mL = 1 cm3.) Every measurement has a degree of uncertainty associated with it. The uncertainty derives from the measuring device and from the skill of the person doing the measuring O.B. wrote: Personally I have been in a 14.5 and a 16 shoalwater cat. Not the 19 but the 16 is the same hull, just shorter. Awesome boat! Runs skinny and floats skinny. built well, BUT they sit really low in the water and the back of the boat is notorious for taking on water

A: 4 degrees C turns out to be the temperature at which liquid water has the highest density. If you heat it or cool it, it will expand. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled. An interesting consequence of this peculiar feature of water is that the temperature. With fewer shadows and water movements to spook fish, pontoon boats are also one of the stealthiest ways to creep up on a catch. While float tubes are a popular alternative to one-man pontoons, these boats require you to pedal your way through the water. Constant kicking can be thoroughly exhausting float in water, is. The physics of floating in both air and water is similar because both air and water behave in similar ways - both are fluids. A fluid is a substance that flows and conforms to the shape of a container that holds it (for example, if you pour water, a fluid, into a bucket, the water will take th

We don't suggest any passengers (because they wouldn't fit), but this Floating Paper Plane is a great hands-on science tool for teaching the science behind airplanes, lift and drag, and principles of air. Experiment Materials. Sheets of 8.5 x 11 paper. Two fans of the same type and size. Ruler. April Fool's Day. Scroll Down To: Experiment Steps When oil is spilled on water, it will float on the water surface and form a thin layer. Oil is not soluble in water. This thin layer of oil on the water surface is called sheen and it can kill the aquatic animals and plants that live beneath the water if it is not removed quickly. Using a ruler, measure the height of the oxygen in the test. Can you stick two plastic rulers together using only water? Invent and record a hypothesis for the ability to float a paper clip on water using the language of cohesion, adhesion, and density. Float the paper clip again, then add a drop of liquid detergent near the paper clip. Record your findings Using the ruler, measure the water level (in millimeters) in each container and record the data on your data sheet or piece of paper. You can mark the water level with a marker on the outside of the container, but remember the ink might not come off. Another way to mark the water level is to make a line in the clay using a pencil or other object Kids would be surprised to see the paper clips floating on the water. How does it really happen? The scientific theory behind this is known as surface tension. There is a kind of skin on the surface of water which holds the water molecules tightly. This surface tension also holds the paper clip which can otherwise not float on the water

### Does rubber float on water? - Answer

Students explore material properties in hands-on and visually evident ways via the Archimedes' principle. First, they design and conduct an experiment to calculate densities of various materials and present their findings to the class. Using this information, they identify an unknown material based on its density. Then, groups explore buoyant forces. They measure displacement needed for. How Does the Science Experiment Work. You are able to pour water down a string because water is both cohesive and adhesive. Cohesion - the sticking together of particles of the same substance. Adhesion - the action or process of adhering to a surface or object. Water has a strong cohesive property because of the water particles' ability. objects will sink or float in regards to density. Water is used as your medium (1 gram/cm 3). Make a graph and place all predictions of the board. 6. After making predictions, students are to drop the objects into the aquarium to observe whether or not the objects will sink or float. Remove object

### Liquid Level Float Switches Pump Controls Tank Gauge

Using a ruler, measure the length, width and height in units of centimeters (cm) of the block of wood at the lab station. Record each measurement. Explain why oil floats on water. Measuring Temperature - Lab Station #6: Fill a 250 mL beaker with tap water. Insert the alcohol thermometer in the water Whatever Floats Your Boat Buoyancy STEAM Challenge Ask. Can you build a boat that will float on water and carry the most mass? The rules of this aluminum foil boat challenge are that the boat must be able to float, it cannot be wider or longer than 6 inches, and each penny added to the boat must hold for at least 15 seconds before another penny is added This Craft Essence is available during the Servant Summer Festival! 2018 event. Normal Effect Increases Arts performance by 15%.Increases NP damage by 15%. Max Limit Break Effect Increases Arts performance by 20%.Increases NP damage by 20%. This Craft Essence features Abigail Williams, Lavinia Whateley and Katsushika Hokusai The buoyant force acting on the aluminum and mass in the boat is the same as the buoyant force acting on an equivalent amount of water. Objective: To design/build two different aluminum foil boats that will hold as many pennies as possible without sinking. Materials Pennies 2-20 cm x 20 inch squares of aluminum foil 1-Ruler Procedure 1 All warranty coverage does not include water softener resin, which is an expendable item. If this water softener is ever used for other than private family purposes, all warranty coverage applies for only 90 days from the date of purchase. • Tape measure or ruler

The Water Tribe is a collective term for a nation of people who practice waterbending. It is divided into two nation-states: the Southern Water Tribe which inhabits the South Pole, and the Northern Water Tribe which inhabits the North Pole. There is also a small population of waterbenders located in the swamps of the Earth Kingdom. The Water Tribe is home to an order of men and women who. If toilets won't flush, drains back up, sewage leaks or the float alarm actives, call Roto-Rooter 24 hours a day, seven days a week, 365 days a year. We'll get there fast to get your commercial septic system cleaned up and operating correctly. Regardless of the type of business you operate, Roto-Rooter provides septic tank pumping, cleaning. Likewise, if the float shut the water off too soon, it wouldn't be high enough for a proper flush and nobody wants that! The float/float valve in the carburettor does the same thing. It controls the level of fuel in the float bowl. (Much easier to use a clear ruler than an opaque one!) Be sure to measure without the gasket. It should be 48. If you put too much water, then the coverslip will float on top of the water, making it hard to draw the specimen, because they might actually float away. (Plus too much water is messy) 3. Place the coverslip at a 45 degree angle (approximately) with one edge touching the water drop and then gently let go cup of water and place a tub with water on the table for the students to share. b. Ask them to make a hypothesis of what will happen when they put the boat in the water. They should answer that the boat will float and you should follow up by asking them what makes the boat float (surface tension and density are both accurate answers)