Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 392 · 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 “the amount of clay”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.True or false: a steel spoon floats on water. (a) True (b) False
3. 3.🛟 Does a feather float or sink in water? (a) sinks (b) floats
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
6. 6.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
8. 8.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a pebble (d) an ice-cream stick
9. 9.🔍 Which is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a feather (d) a ping-pong ball
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a mirror (d) a results table
11. 11.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
13. 13.🛟 Which of these sinks in water? (a) a feather (b) a coin (c) a piece of thermocol (d) an ice-cream stick
14. 14.True or false: a ball of clay floats on water. (a) True (b) False
15. 15.⚖️ 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) False (b) True
16. 16.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a mirror (d) a towel for spills
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
22. 22.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
23. 23.🛟 Which of these sinks in water? (a) a feather (b) a ball of clay (c) a ping-pong ball (d) a dry leaf
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.⚖️ 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 shape of the clay (b) whether it floats (c) the kind of clay (d) the tub of water
27. 27.🛟 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
28. 28.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
30. 30.⚖️ 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) True (b) False
31. 31.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) an iron nail (d) a glass marble
32. 32.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
33. 33.🛟 Does a cork float or sink in water? (a) floats (b) sinks
34. 34.🛟 Which of these sinks in water? (a) a metal key (b) a ping-pong ball (c) an empty capped bottle (d) a cork
35. 35.⚖️ 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 kind of clay (c) whether it floats
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
37. 37.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
38. 38.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
39. 39.True or false: an ice cube floats on water. (a) False (b) True
40. 40.⚖️ 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

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