Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 64 · 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.🛟 Which of these sinks in water? (a) a pebble (b) a piece of thermocol (c) an ice-cream stick (d) a ping-pong ball
2. 2.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) run around the tub (d) play near a deep pond
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects
5. 5.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
9. 9.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a tub of water (d) a results table
12. 12.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
13. 13.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) small test objects (d) a towel for spills
15. 15.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
17. 17.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
18. 18.🧺 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) turmeric powder (d) a results table
19. 19.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
21. 21.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
22. 22.True or false: a feather floats on water. (a) True (b) False
23. 23.⚖️ 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
24. 24.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a ball of clay (d) an ice cube
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a towel for spills (d) a results table
26. 26.⚖️ 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
27. 27.⚖️ 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) True (b) False
28. 28.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
29. 29.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.🛟 Which of these sinks in water? (a) a glass marble (b) a piece of thermocol (c) an ice cube (d) an empty capped bottle
33. 33.🔍 Which is the odd one out? (a) an iron nail (b) a feather (c) a metal key (d) a glass marble
34. 34.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) an empty capped bottle (d) a dry leaf
35. 35.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
36. 36.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) an iron nail (d) an ice-cream stick
37. 37.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) small test objects (d) a results table
39. 39.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
40. 40.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) ice is very cold (d) water is sticky

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