Floating and Sinking Experiment Worksheet

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

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