Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 34 · 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 is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) a cork (d) a metal key
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
3. 3.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a glass marble (d) an ice-cream stick
6. 6.🛟 Which of these sinks in water? (a) a cork (b) a ping-pong ball (c) a piece of thermocol (d) a coin
7. 7.🛟 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
8. 8.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) an iron nail (d) an ice-cream stick
9. 9.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) a towel for spills (d) small test objects
11. 11.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) turmeric powder (d) yeast
13. 13.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a glass marble (d) a piece of thermocol
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
15. 15.🧺 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) turmeric powder (d) a results table
16. 16.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
20. 20.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
21. 21.🛟 Which of these floats on water? (a) a cork (b) a coin (c) a steel spoon (d) a metal key
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
23. 23.⚖️ 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
24. 24.⚖️ 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 change it (b) we measure it (c) we keep it the same
25. 25.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
28. 28.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a steel spoon (d) an iron nail
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
31. 31.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
32. 32.True or false: a ping-pong ball floats on water. (a) False (b) True
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) small test objects (d) a tub of water
34. 34.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
35. 35.True or false: a steel spoon floats on water. (a) True (b) False
36. 36.True or false: a pebble sinks in water. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a steel spoon (d) a coin
38. 38.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
39. 39.True or false: an ice-cream stick sinks in 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 amount of clay is kept the same. (a) False (b) True

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