Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 801 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
4. 4.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a metal key (d) a dry leaf
5. 5.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 measure it (b) we keep it the same (c) we change it
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a battery cell
8. 8.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
9. 9.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
10. 10.⚖️ 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 kind of clay (c) the shape of the clay
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a balloon (d) a tub of water
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
13. 13.True or false: a cork floats on water. (a) True (b) False
14. 14.⚖️ 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
15. 15.🛟 Does a coin float or sink in water? (a) floats (b) sinks
16. 16.⚖️ 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
17. 17.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
18. 18.True or false: a dry leaf floats on water. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a glass marble (d) a metal key
20. 20.🛟 Does a cork float or sink in water? (a) floats (b) sinks
21. 21.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) an ice cube (d) a pebble
22. 22.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ 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 shape of the clay (d) the kind of clay
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.⚖️ 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) the kind of clay (c) whether it floats (d) the tub of water
26. 26.⚖️ 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) whether it floats (c) the tub of water
27. 27.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
28. 28.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
29. 29.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a results table (d) turmeric powder
31. 31.True or false: a balloon 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? True or false: the tub of water is kept the same. (a) True (b) False
33. 33.🛟 Which of these floats on water? (a) a metal key (b) a dry leaf (c) a glass marble (d) a pebble
34. 34.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a coin (b) a feather (c) an empty capped bottle (d) an ice-cream stick
36. 36.🧺 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) small test objects (d) a battery cell
37. 37.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a coin (d) a pebble
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) a magnet
39. 39.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) a steel spoon (d) a piece of thermocol
40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats

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