Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 741 · 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 sinks in water? (a) a steel spoon (b) a feather (c) a cork (d) a ping-pong ball
2. 2.⚖️ 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 kind of clay (d) the amount of clay
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
4. 4.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
5. 5.⚖️ 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
6. 6.True or false: an iron nail floats on water. (a) True (b) False
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
8. 8.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a dry leaf (c) a ping-pong ball (d) a coin
9. 9.⚖️ 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
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
11. 11.⚖️ 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
12. 12.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) an iron nail (d) a cork
13. 13.⚖️ 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
14. 14.🛟 Does a cork float or sink in water? (a) floats (b) sinks
15. 15.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a steel spoon (d) a metal key
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a results table (d) a tub of water
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
20. 20.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
21. 21.🔮 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
22. 22.⚖️ 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 keep it the same (b) we measure it (c) we change it
23. 23.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a balloon (d) a towel for spills
28. 28.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
29. 29.True or false: a piece of thermocol floats on water. (a) False (b) True
30. 30.🧺 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) small test objects (d) a magnet
31. 31.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
32. 32.True or false: a glass marble sinks in water. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
34. 34.🛟 Which of these sinks in water? (a) an ice cube (b) an iron nail (c) a cork (d) a piece of thermocol
35. 35.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
36. 36.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a feather (d) a pebble
37. 37.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a mirror (d) a results table
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a balloon (d) small test objects
40. 40.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed

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