Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 641 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) turmeric powder (d) a magnet
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a towel for spills (d) small test objects
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a balloon (c) turmeric powder (d) a magnet
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) turmeric powder (d) a tub of water
8. 8.⚖️ 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 tub of water (b) whether it floats (c) the shape of the clay (d) the amount of clay
9. 9.True or false: a pebble floats on water. (a) False (b) True
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
11. 11.⚖️ 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) True (b) False
12. 12.True or false: a ping-pong ball floats on water. (a) True (b) False
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
14. 14.🛟 Which of these sinks in water? (a) a coin (b) a cork (c) an ice cube (d) an ice-cream stick
15. 15.True or false: an ice cube sinks in water. (a) True (b) False
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a tub of water (d) small test objects
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a tub of water (d) a results table
18. 18.True or false: a dry leaf sinks in water. (a) False (b) True
19. 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
20. 20.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
21. 21.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a ping-pong ball (d) a ball of clay
22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) an empty capped bottle (d) a glass marble
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
25. 25.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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) True (b) False
27. 27.🧺 Do we need small test objects 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? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the tub of water
29. 29.🧺 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) a balloon (d) a tub of water
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a towel for spills (d) a results table
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
32. 32.True or false: a coin sinks in water. (a) True (b) False
33. 33.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
34. 34.⚖️ 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 change it (c) we measure it
35. 35.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
36. 36.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
38. 38.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
39. 39.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
40. 40.⚖️ 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

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