Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 408 · 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.🛟 Does a coin float or sink in water? (a) floats (b) sinks
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
4. 4.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
5. 5.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
6. 6.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a coin (d) an empty capped bottle
9. 9.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a results table (d) small test objects
11. 11.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
12. 12.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
13. 13.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
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 amount of clay (b) the shape of the clay (c) the tub of water (d) the kind of clay
17. 17.True or false: an iron nail sinks in water. (a) True (b) False
18. 18.🧺 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) turmeric powder
19. 19.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: a feather floats on water. (a) False (b) True
21. 21.⚖️ 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
22. 22.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
23. 23.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a coin (d) a glass marble
26. 26.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
27. 27.🛟 Which of these sinks in water? (a) a feather (b) an ice cube (c) a glass marble (d) a dry leaf
28. 28.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
29. 29.🛟 Does a feather float or sink in water? (a) floats (b) sinks
30. 30.⚖️ 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
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a balloon (d) a results table
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
34. 34.⚖️ 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
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
36. 36.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
37. 37.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
38. 38.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a magnet (d) a results table
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) yeast (c) a tub of water (d) small test objects

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