Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 218 · 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.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a battery cell
5. 5.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
6. 6.True or false: an iron nail floats on water. (a) False (b) True
7. 7.True or false: a coin sinks in water. (a) False (b) True
8. 8.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
10. 10.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a balloon (d) small test objects
12. 12.True or false: a piece of thermocol floats on water. (a) False (b) True
13. 13.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a dry leaf (d) a pebble
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
16. 16.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
18. 18.True or false: a dry leaf sinks in water. (a) True (b) False
19. 19.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
21. 21.True or false: an empty capped bottle floats on water. (a) True (b) False
22. 22.🧺 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 magnet
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) whether it floats (d) the shape of the clay
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) yeast (d) a battery cell
25. 25.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a towel for spills (d) a results table
27. 27.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a glass marble (d) a ball of clay
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a balloon (d) a towel for spills
29. 29.⚖️ 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
30. 30.True or false: a dry leaf floats on water. (a) False (b) True
31. 31.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) a metal key (d) a dry leaf
33. 33.True or false: an ice cube sinks in water. (a) True (b) False
34. 34.🧺 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) turmeric powder (d) a tub of water
35. 35.⚖️ 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 keep it the same (c) we change it
36. 36.⚖️ 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 tub of water (b) the amount of clay (c) the kind of clay (d) the shape of the clay
37. 37.⚖️ 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) False (b) True
38. 38.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) a ping-pong ball (d) a piece of thermocol
39. 39.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
40. 40.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe

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