Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 720 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
2. 2.True or false: an ice-cream stick floats on water. (a) False (b) True
3. 3.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a magnet (d) a battery cell
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the kind of clay
8. 8.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
9. 9.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
10. 10.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
11. 11.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
15. 15.🛟 Does a feather float or sink in water? (a) floats (b) sinks
16. 16.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a results table (d) turmeric powder
19. 19.True or false: a dry leaf floats on water. (a) True (b) False
20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
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 measure it (b) we keep it the same (c) we change it
22. 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) the small pebble (d) both of them
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a mirror (d) a tub of water
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a mirror (d) a magnet
25. 25.🛟 Which of these floats on water? (a) an ice cube (b) a coin (c) a ball of clay (d) an iron nail
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a ping-pong ball (d) a glass marble
31. 31.True or false: a ball of clay floats on water. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a mirror (d) a towel for spills
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a mirror (d) turmeric powder
35. 35.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
37. 37.⚖️ 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
38. 38.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
39. 39.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a coin (d) a feather

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