Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 150 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a battery cell
2. 2.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
3. 3.🛟 Does a coin float or sink in water? (a) sinks (b) floats
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a battery cell (d) a magnet
5. 5.🧺 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 results table (d) a balloon
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a steel spoon (d) an iron nail
15. 15.True or false: a piece of thermocol floats on water. (a) True (b) False
16. 16.True or false: a glass marble floats on water. (a) True (b) False
17. 17.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
18. 18.⚖️ 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
19. 19.🔍 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
20. 20.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
21. 21.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
22. 22.🛟 Does a feather float or sink in water? (a) floats (b) sinks
23. 23.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) turmeric powder
25. 25.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
26. 26.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a steel spoon (d) a dry leaf
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
28. 28.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
29. 29.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a magnet (d) a balloon
31. 31.⚖️ 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 measure it (b) we keep it the same (c) we change it
32. 32.⚖️ 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
33. 33.⚖️ 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 tub of water (d) the shape of the clay
34. 34.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a results table (d) a towel for spills
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a tub of water
38. 38.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
39. 39.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a feather (d) a glass marble
40. 40.True or false: an ice-cream stick sinks in water. (a) False (b) True

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