Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 508 · 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) an iron nail (c) a pebble (d) a ball of clay
2. 2.🛟 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
3. 3.🧊 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
4. 4.🛟 Does a cork float or sink in water? (a) floats (b) sinks
5. 5.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a glass marble (c) an empty capped bottle (d) a feather
6. 6.True or false: an iron nail sinks in water. (a) False (b) True
7. 7.⚖️ 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 kind of clay (b) the shape of the clay (c) the amount of clay (d) whether it floats
8. 8.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
9. 9.⚖️ 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) whether it floats (c) the amount of clay (d) the kind of clay
10. 10.⚖️ 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 change it (b) we keep it the same (c) we measure it
11. 11.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) an iron nail (d) a feather
12. 12.🔍 Which is the odd one out? (a) an empty capped bottle (b) a coin (c) an ice cube (d) a cork
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) small test objects (d) a results table
14. 14.True or false: a piece of thermocol floats on water. (a) False (b) True
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) yeast
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) a tub of water (d) a towel for spills
18. 18.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
19. 19.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a coin (c) a ping-pong ball (d) a feather
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
21. 21.True or false: a cork floats on water. (a) True (b) False
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a towel for spills (d) a results table
23. 23.⚖️ 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 change it (c) we keep it the same
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 change it (b) we keep it the same (c) we measure it
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a tub of water (d) turmeric powder
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a mirror (d) a towel for spills
27. 27.⚖️ 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
28. 28.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) a dry leaf (d) an ice cube
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
31. 31.True or false: an empty capped bottle floats on water. (a) False (b) True
32. 32.True or false: a dry leaf floats on water. (a) False (b) True
33. 33.True or false: a ping-pong ball sinks in water. (a) True (b) False
34. 34.🛟 Does a coin float or sink in water? (a) sinks (b) floats
35. 35.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a piece of thermocol (d) a steel spoon
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a balloon (d) a results table
37. 37.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a feather (d) a glass marble

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