Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 200 · 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.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
3. 3.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a metal key (d) a cork
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) a battery cell (d) a magnet
5. 5.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
6. 6.🛟 Which of these sinks in water? (a) an iron nail (b) an ice cube (c) a ping-pong ball (d) an ice-cream stick
7. 7.True or false: a piece of thermocol sinks in water. (a) True (b) False
8. 8.🛟 Which of these floats on water? (a) an ice-cream stick (b) a steel spoon (c) a metal key (d) a glass marble
9. 9.🛟 Which of these floats on water? (a) an iron nail (b) a dry leaf (c) a ball of clay (d) a coin
10. 10.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
12. 12.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
13. 13.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) an empty capped bottle (d) a dry leaf
14. 14.⚖️ 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 change it (c) we measure it
15. 15.True or false: a ping-pong ball sinks in water. (a) False (b) True
16. 16.🛟 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 keep children safe (d) to splash everyone
17. 17.🧺 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) a battery cell
18. 18.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a dry leaf (d) a glass marble
19. 19.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
21. 21.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a towel for spills (d) a results table
23. 23.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) an ice cube (d) an iron nail
24. 24.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
25. 25.True or false: a pebble floats on water. (a) False (b) True
26. 26.⚖️ 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
27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) yeast
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a towel for spills (d) small test objects
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a towel for spills (d) a balloon
32. 32.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
33. 33.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) a tub of water (d) small test objects
36. 36.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) a ball of clay (d) a piece of thermocol
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) yeast
38. 38.⚖️ 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
39. 39.True or false: a steel spoon floats on water. (a) True (b) False
40. 40.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False

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