Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 740 · 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? True or false: whether it floats is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
3. 3.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) an ice cube (d) an empty capped bottle
4. 4.True or false: an ice cube floats on water. (a) True (b) False
5. 5.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
7. 7.True or false: a feather floats on water. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) turmeric powder (d) a tub of water
10. 10.🛟 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
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a battery cell (d) yeast
12. 12.⚖️ 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 keep it the same (b) we measure it (c) we change it
13. 13.⚖️ 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 measure it (b) we change it (c) we keep it the same
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
17. 17.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
18. 18.🧺 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) small test objects (d) a balloon
19. 19.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
23. 23.True or false: a glass marble sinks in water. (a) True (b) False
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a magnet (d) yeast
25. 25.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
26. 26.🛟 Which of these sinks in water? (a) a feather (b) a coin (c) a dry leaf (d) a cork
27. 27.True or false: a piece of thermocol floats on water. (a) True (b) False
28. 28.🛟 Which of these floats on water? (a) a pebble (b) a piece of thermocol (c) a coin (d) an iron nail
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the tub of water (c) whether it floats
31. 31.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) a piece of thermocol (b) a feather (c) a metal key (d) an empty capped bottle
33. 33.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) the tub of water (d) whether it floats
35. 35.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
36. 36.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
37. 37.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) an ice cube (d) an iron nail
38. 38.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
39. 39.🧺 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) turmeric powder (d) a towel for spills
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True

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