Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 607 · 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) turmeric powder (b) a results table (c) small test objects (d) a tub of water
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
3. 3.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a dry leaf (d) a steel spoon
4. 4.True or false: a dry leaf floats on water. (a) True (b) False
5. 5.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a ball of clay (d) a feather
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
7. 7.⚖️ 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
8. 8.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
9. 9.True or false: a pebble floats on water. (a) True (b) False
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
11. 11.⚖️ 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) True (b) False
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
13. 13.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an ice-cream stick (d) an iron nail
14. 14.🛟 Which of these floats on water? (a) an empty capped bottle (b) a glass marble (c) a steel spoon (d) a metal key
15. 15.🧺 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 tub of water
16. 16.True or false: an ice-cream stick sinks in water. (a) False (b) True
17. 17.True or false: a feather floats on water. (a) True (b) False
18. 18.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
19. 19.🛟 Does a cork float or sink in water? (a) sinks (b) floats
20. 20.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
21. 21.🛟 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
22. 22.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) an iron nail (d) a ball of clay
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it dissolves (d) it turns white
25. 25.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a coin (d) an ice cube
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
27. 27.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a pebble (d) a dry leaf
28. 28.⚖️ 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 keep it the same (b) we change it (c) we measure it
29. 29.⚖️ 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 measure it (b) we keep it the same (c) we change it
30. 30.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a metal key (d) an ice-cream stick
31. 31.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a results table (d) a towel for spills
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) turmeric powder
34. 34.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a piece of thermocol (d) an iron nail
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
36. 36.True or false: a steel spoon floats on water. (a) True (b) False
37. 37.⚖️ 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) the amount of clay (c) the shape of the clay (d) whether it floats
38. 38.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
39. 39.True or false: an iron nail floats on water. (a) True (b) False
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) small test objects (d) a towel for spills

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