Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 844 · 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) a tub of water (b) a towel for spills (c) a magnet (d) a results table
2. 2.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
3. 3.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a feather (d) a pebble
4. 4.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
5. 5.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a ball of clay (d) a dry leaf
6. 6.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
8. 8.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
10. 10.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
11. 11.🧺 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) turmeric powder (d) a results table
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a towel for spills (d) a tub of water
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
14. 14.⚖️ 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 change it (c) we keep it the same
15. 15.True or false: a dry leaf floats on water. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) an iron nail (d) a coin
17. 17.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
18. 18.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) turmeric powder (d) yeast
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a battery cell (d) a results table
21. 21.⚖️ 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 tub of water (c) the amount of clay (d) the shape of the clay
22. 22.🛟 Which of these sinks in water? (a) a metal key (b) an empty capped bottle (c) an ice-cream stick (d) a ping-pong ball
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
24. 24.True or false: a tub of water is needed for the float-or-sink test. (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 “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a balloon (d) yeast
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
31. 31.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a cork (d) a ball of clay
33. 33.⚖️ 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) True (b) False
34. 34.⚖️ 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) True (b) False
35. 35.True or false: a metal key floats on water. (a) False (b) True
36. 36.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a pebble (b) an empty capped bottle (c) a feather (d) an ice cube
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) lots of salt stirred in (d) a few ice cubes
40. 40.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True

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