Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 56 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
4. 4.⚖️ 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 keep it the same (b) we change it (c) we measure it
5. 5.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a feather (d) an iron nail
6. 6.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
7. 7.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
10. 10.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
11. 11.True or false: an ice-cream stick floats on water. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a ball of clay (d) an ice cube
13. 13.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a towel for spills (c) a results table (d) small test objects
17. 17.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
18. 18.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
19. 19.🛟 Which of these sinks in water? (a) a coin (b) a ping-pong ball (c) a feather (d) an ice cube
20. 20.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
21. 21.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
22. 22.⚖️ 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) the kind of clay (d) whether it floats
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
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) whether it floats (b) the tub of water (c) the shape of the clay (d) the kind of clay
25. 25.🛟 Which of these floats on water? (a) a piece of thermocol (b) a metal key (c) an iron nail (d) a steel spoon
26. 26.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a glass marble (d) a dry leaf
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
28. 28.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
29. 29.True or false: a cork floats on water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a steel spoon (b) an empty capped bottle (c) a ball of clay (d) a coin
31. 31.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
33. 33.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
34. 34.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an ice-cream stick (d) a glass marble
35. 35.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
37. 37.🧺 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
38. 38.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) an iron nail (d) a cork
39. 39.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a battery cell (d) a towel for spills

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