Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 62 · 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? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
3. 3.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
4. 4.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
5. 5.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
6. 6.⚖️ 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
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
8. 8.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
12. 12.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a pebble (d) an ice cube
13. 13.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a mirror (d) a battery cell
16. 16.⚖️ 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 shape of the clay (b) the tub of water (c) the amount of clay (d) the kind of clay
17. 17.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a cork (d) a coin
18. 18.🛟 Which of these sinks in water? (a) a ball of clay (b) an empty capped bottle (c) a ping-pong ball (d) an ice-cream stick
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) a towel for spills (d) a tub of water
20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) an ice-cream stick (c) an iron nail (d) an ice cube
21. 21.🛟 Does a cork float or sink in water? (a) sinks (b) floats
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
23. 23.⚖️ 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) the tub of water (c) the shape of the clay (d) whether it floats
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) small test objects (d) a magnet
25. 25.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
26. 26.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) a ping-pong ball (d) an ice cube
27. 27.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
28. 28.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
30. 30.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a glass marble (d) a ping-pong ball
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🛟 Which of these sinks in water? (a) a cork (b) a pebble (c) an ice-cream stick (d) a dry leaf
33. 33.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) a feather (d) a metal key
34. 34.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Which of these sinks in water? (a) a feather (b) a coin (c) an ice-cream stick (d) a dry leaf
36. 36.🧺 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 mirror (d) a results table
37. 37.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: an ice-cream stick floats on water. (a) False (b) True
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet

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