Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 116 · 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? True or false: the shape of the clay is kept the same. (a) True (b) False
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) True (b) False
3. 3.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a towel for spills (c) a mirror (d) a magnet
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) whether it floats (c) the shape of the clay (d) the amount of clay
6. 6.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
7. 7.True or false: a pebble sinks in water. (a) False (b) True
8. 8.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
9. 9.🧺 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) yeast (d) a results table
10. 10.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
13. 13.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
14. 14.⚖️ 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) False (b) True
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
16. 16.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
17. 17.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) small test objects (d) a results table
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
21. 21.True or false: an empty capped bottle floats on water. (a) False (b) True
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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 change it (b) we keep it the same (c) we measure it
24. 24.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
26. 26.🧺 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) a magnet (d) a results table
27. 27.⚖️ 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) True (b) False
28. 28.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a steel spoon (d) an empty capped bottle
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ 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 change it (c) we keep it the same
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a towel for spills (d) small test objects
32. 32.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
33. 33.True or false: an ice cube sinks in water. (a) False (b) True
34. 34.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🥚 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
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
38. 38.⚖️ 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) whether it floats (c) the amount of clay
39. 39.⚖️ 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 kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) turmeric powder (d) small test objects

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