Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 418 · 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? True or false: the amount of clay is the one thing we change. (a) True (b) False
2. 2.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
3. 3.🛟 Which of these floats on water? (a) a glass marble (b) an empty capped bottle (c) an iron nail (d) a metal key
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) turmeric powder (d) a results table
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
8. 8.True or false: a piece of thermocol sinks in water. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a ping-pong ball (b) a dry leaf (c) a coin (d) a cork
10. 10.True or false: a metal key sinks in water. (a) True (b) False
11. 11.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) small test objects (d) a results table
14. 14.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) yeast (d) a results table
16. 16.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
17. 17.True or false: a ping-pong ball sinks in water. (a) True (b) False
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) an ice cube (d) a ball of clay
23. 23.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
24. 24.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) an ice-cream stick (d) a ball of clay
25. 25.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) leave water on the floor (d) run around the tub
26. 26.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
27. 27.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
28. 28.True or false: an empty capped bottle sinks in water. (a) False (b) True
29. 29.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ 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 measure it (c) we keep it the same
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 measure it (b) we change it (c) we keep it the same
32. 32.🛟 Does a coin float or sink in water? (a) sinks (b) floats
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
34. 34.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
35. 35.True or false: a metal key floats on water. (a) False (b) True
36. 36.🔍 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
37. 37.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
38. 38.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) a balloon
40. 40.⚖️ 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) False (b) True

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