Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 529 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the kind of clay (b) the amount of clay (c) the tub of water (d) the shape of the clay
2. 2.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
3. 3.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
6. 6.🛟 Does a cork float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a metal key (d) a cork
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) small test objects (d) a towel for spills
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) a towel for spills (d) small test objects
15. 15.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) an iron nail (d) a cork
16. 16.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
17. 17.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) an iron nail (d) a cork
18. 18.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a towel for spills (d) small test objects
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
26. 26.True or false: a ball of clay sinks in water. (a) False (b) True
27. 27.🛟 Which of these floats on water? (a) a ping-pong ball (b) a pebble (c) a steel spoon (d) a ball of clay
28. 28.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
29. 29.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
30. 30.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
35. 35.True or false: a piece of thermocol floats on water. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) yeast
38. 38.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
40. 40.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed

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