Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 819 · 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 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
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
3. 3.⚖️ 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) False (b) True
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) a results table (d) small test objects
5. 5.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
6. 6.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
7. 7.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
8. 8.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) an iron nail (d) a cork
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a magnet (d) a results table
10. 10.True or false: an ice cube floats on water. (a) True (b) False
11. 11.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
12. 12.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
13. 13.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
14. 14.⚖️ 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) False (b) True
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
16. 16.🔍 Which is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a steel spoon (d) a coin
17. 17.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
18. 18.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
19. 19.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a cork (d) a metal key
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
21. 21.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
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) whether it floats (c) the shape of the clay (d) the kind of clay
24. 24.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
25. 25.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
26. 26.True or false: a dry leaf floats on water. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
29. 29.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) turmeric powder (d) a mirror
31. 31.True or false: an empty capped bottle floats on water. (a) False (b) True
32. 32.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a glass marble (d) an ice-cream stick
33. 33.⚖️ 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 change it (b) we keep it the same (c) we measure it
34. 34.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a steel spoon (d) a ping-pong ball
35. 35.⚖️ 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 measure it (b) we change it (c) we keep it the same
36. 36.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a metal key (d) a piece of thermocol
37. 37.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a ball of clay (d) an empty capped bottle
38. 38.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
39. 39.⚖️ 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 amount of clay (b) whether it floats (c) the tub of water (d) the shape of the clay
40. 40.True or false: a metal key sinks in water. (a) True (b) False

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