Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 510 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
2. 2.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) an ice cube (d) a metal key
3. 3.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ping-pong ball (c) a cork (d) a steel spoon
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a mirror (d) a results table
5. 5.True or false: an empty capped bottle floats on water. (a) True (b) False
6. 6.🧺 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
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a results table
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.True or false: a glass marble floats on water. (a) True (b) False
11. 11.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
12. 12.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) small test objects (d) a battery cell
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a magnet
16. 16.🧺 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 tub of water (d) a mirror
17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
18. 18.🔍 Which is the odd one out? (a) a dry leaf (b) a glass marble (c) a piece of thermocol (d) a cork
19. 19.⚖️ 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
20. 20.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
21. 21.True or false: yeast 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) a magnet (d) a results table
23. 23.⚖️ 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
24. 24.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
25. 25.⚖️ 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
26. 26.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
27. 27.True or false: a pebble floats on water. (a) True (b) False
28. 28.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
29. 29.True or false: a piece of thermocol floats on water. (a) False (b) True
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
31. 31.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
32. 32.🔍 Which is the odd one out? (a) a ball of clay (b) an empty capped bottle (c) a dry leaf (d) a feather
33. 33.True or false: a cork sinks in water. (a) True (b) False
34. 34.True or false: a dry leaf floats on water. (a) True (b) False
35. 35.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a steel spoon (d) a piece of thermocol
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) small test objects (d) a tub of water
37. 37.🔍 Which is the odd one out? (a) a pebble (b) an empty capped bottle (c) a ball of clay (d) a coin
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a magnet (d) a mirror
39. 39.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
40. 40.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float

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