Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 973 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it sinks (d) it dissolves
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
3. 3.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) a feather (d) a pebble
4. 4.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a metal key (d) an ice cube
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
7. 7.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
8. 8.🔍 Which is the odd one out? (a) a piece of thermocol (b) a dry leaf (c) a steel spoon (d) an empty capped bottle
9. 9.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) an ice cube (d) a glass marble
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a mirror (d) a tub of water
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
12. 12.🛟 Which of these sinks in water? (a) an ice cube (b) a piece of thermocol (c) a dry leaf (d) a steel spoon
13. 13.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) an iron nail (d) a ping-pong ball
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) a results table
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
16. 16.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) an iron nail (d) an empty capped bottle
17. 17.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
20. 20.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
21. 21.True or false: an ice cube floats on water. (a) False (b) True
22. 22.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
23. 23.🛟 Which of these sinks in water? (a) an ice cube (b) a glass marble (c) an empty capped bottle (d) a feather
24. 24.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
25. 25.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
26. 26.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
27. 27.True or false: a dry leaf floats on water. (a) False (b) True
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the tub of water (c) the shape of the clay
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
31. 31.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
32. 32.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the amount of clay (c) whether it floats
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a balloon (d) a tub of water
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
36. 36.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
38. 38.True or false: a steel spoon sinks in water. (a) False (b) True
39. 39.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
40. 40.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True

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