Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 809 · 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.🛟 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
2. 2.🛟 Which of these floats on water? (a) a piece of thermocol (b) a glass marble (c) a pebble (d) an iron nail
3. 3.⚖️ 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
4. 4.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
5. 5.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) an ice-cream stick (d) a ball of clay
6. 6.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an ice cube (d) an iron nail
7. 7.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) a steel spoon (d) an empty capped bottle
8. 8.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) a magnet
10. 10.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a pebble (d) a ping-pong ball
11. 11.True or false: a glass marble sinks in water. (a) False (b) True
12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
13. 13.⚖️ 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) True (b) False
14. 14.🔮 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
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a battery cell
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a tub of water (d) small test objects
17. 17.🔍 Which is the odd one out? (a) a feather (b) a ball of clay (c) a dry leaf (d) a piece of thermocol
18. 18.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) a glass marble (d) a feather
19. 19.True or false: an iron nail floats on water. (a) True (b) False
20. 20.⚖️ 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) True (b) False
21. 21.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
22. 22.⚖️ 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 amount of clay (b) whether it floats (c) the tub of water (d) the shape of the clay
23. 23.True or false: a pebble sinks in water. (a) False (b) True
24. 24.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
25. 25.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
26. 26.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) a pebble (d) an iron nail
28. 28.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
29. 29.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
30. 30.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) a battery cell
32. 32.True or false: an ice cube sinks in water. (a) True (b) False
33. 33.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
34. 34.⚖️ 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 change it (c) we measure it
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) turmeric powder (d) small test objects
39. 39.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
40. 40.🛟 Does a feather float or sink in water? (a) floats (b) sinks

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