Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 7 · 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.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Which of these floats on water? (a) a ball of clay (b) a metal key (c) a cork (d) an iron nail
3. 3.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an iron nail (c) an empty capped bottle (d) a feather
4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
5. 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
6. 6.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a balloon
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a results table
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to splash everyone (d) to hide the corks
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
11. 11.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
12. 12.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
16. 16.True or false: a coin floats on water. (a) True (b) False
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) small test objects (d) a battery cell
18. 18.🛟 Which of these floats on water? (a) a dry leaf (b) a steel spoon (c) an iron nail (d) a ball of clay
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a balloon (d) small test objects
21. 21.🛟 Does a feather float or sink in water? (a) floats (b) sinks
22. 22.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a ball of clay (d) a cork
23. 23.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) an empty capped bottle (d) a pebble
24. 24.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
25. 25.🔮 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
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) turmeric powder (d) a tub of water
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 shape of the clay (c) the amount of clay
29. 29.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
30. 30.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
31. 31.⚖️ 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 keep it the same (b) we measure it (c) we change it
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a towel for spills (d) yeast
37. 37.🔍 Which is the odd one out? (a) a ping-pong ball (b) a piece of thermocol (c) a steel spoon (d) an ice-cream stick
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
39. 39.True or false: an empty capped bottle sinks in water. (a) False (b) True
40. 40.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True

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