Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 532 · 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.🛟 Which of these floats on water? (a) an ice-cream stick (b) a coin (c) a ball of clay (d) a pebble
2. 2.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
3. 3.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
6. 6.True or false: an ice cube sinks in water. (a) True (b) False
7. 7.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) an ice cube (d) a glass marble
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
9. 9.True or false: a steel spoon floats on water. (a) True (b) False
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) whether it floats (d) the amount of clay
11. 11.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
12. 12.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
13. 13.⚖️ 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 change it (b) we measure it (c) we keep it the same
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
16. 16.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
17. 17.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
18. 18.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) a ping-pong ball (c) a glass marble (d) an iron nail
20. 20.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a balloon (c) a mirror (d) turmeric powder
22. 22.🧺 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 towel for spills (d) a mirror
23. 23.⚖️ 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
24. 24.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
25. 25.🔮 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
26. 26.True or false: a piece of thermocol sinks in water. (a) False (b) True
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) small test objects (d) yeast
28. 28.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
29. 29.True or false: a ping-pong ball sinks in water. (a) True (b) False
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.⚖️ 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) the tub of water (c) whether it floats (d) the shape of the clay
33. 33.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) an iron nail (d) a coin
34. 34.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a ping-pong ball (d) a piece of thermocol
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) a battery cell
37. 37.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
39. 39.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed

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