Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 600 · 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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
3. 3.True or false: a cork floats on water. (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 “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🧺 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) a results table (d) a magnet
6. 6.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a pebble (d) a dry leaf
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
10. 10.⚖️ 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
11. 11.True or false: a cork sinks in water. (a) False (b) True
12. 12.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a tub of water (d) a magnet
14. 14.⚖️ 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) whether it floats (c) the tub of water (d) the kind of clay
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
16. 16.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a pebble (d) a cork
17. 17.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
18. 18.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) a ping-pong ball (d) a dry leaf
19. 19.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) a steel spoon (d) a metal key
20. 20.⚖️ 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 measure it (c) we keep it the same
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
22. 22.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
23. 23.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
24. 24.True or false: a ping-pong ball sinks in water. (a) False (b) True
25. 25.True or false: an iron nail floats on water. (a) False (b) True
26. 26.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
29. 29.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
30. 30.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
32. 32.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
33. 33.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
34. 34.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
35. 35.⚖️ 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
36. 36.True or false: a steel spoon floats on water. (a) True (b) False
37. 37.⚖️ 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) True (b) False
38. 38.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a coin (d) a feather
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) turmeric powder (d) a results table
40. 40.True or false: a metal key sinks in water. (a) False (b) True

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