Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 615 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: an iron nail floats on water. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a piece of thermocol (d) an ice-cream stick
4. 4.⚖️ 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
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
6. 6.🛟 Does a coin float or sink in water? (a) sinks (b) floats
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
8. 8.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) an ice-cream stick (d) a pebble
9. 9.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) yeast (d) a towel for spills
12. 12.⚖️ 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) whether it floats (c) the tub of water (d) the kind of clay
13. 13.⚖️ 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
14. 14.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
15. 15.⚖️ 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
16. 16.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
19. 19.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
20. 20.🛟 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
21. 21.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) yeast (d) small test objects
23. 23.True or false: a metal key sinks in water. (a) True (b) False
24. 24.⚖️ 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) the shape of the clay (c) the amount of clay (d) the kind of clay
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a mirror
26. 26.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
27. 27.True or false: an ice-cream stick floats on water. (a) False (b) True
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
29. 29.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
31. 31.True or false: a dry leaf sinks in water. (a) False (b) True
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 kept the same. (a) False (b) True
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a towel for spills (d) a tub of water
34. 34.True or false: a ping-pong ball sinks in water. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) an ice cube (d) a metal key
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) a mirror (d) small test objects
37. 37.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
39. 39.⚖️ 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 shape of the clay (c) the amount of clay
40. 40.True or false: a pebble floats on water. (a) False (b) True

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