Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 451 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.🧺 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) small test objects (d) a tub of water
8. 8.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a metal key (d) a piece of thermocol
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
10. 10.🛟 Which of these floats on water? (a) an ice-cream stick (b) an iron nail (c) a glass marble (d) a pebble
11. 11.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
12. 12.🛟 Which of these floats on water? (a) a cork (b) a steel spoon (c) a coin (d) a pebble
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a battery cell (d) a tub of water
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.🛟 Does a feather float or sink in water? (a) floats (b) sinks
16. 16.🧺 Do we need yeast 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? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
18. 18.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
19. 19.⚖️ 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
20. 20.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) yeast
23. 23.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it floats (d) it sinks
24. 24.⚖️ 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 tub of water (c) whether it floats
25. 25.True or false: a metal key floats on water. (a) True (b) False
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a mirror (d) a towel for spills
29. 29.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
30. 30.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) an iron nail (d) an ice cube
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the shape of the clay (d) the tub of water
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a results table (d) turmeric powder
33. 33.🔍 Which is the odd one out? (a) a piece of thermocol (b) a pebble (c) a coin (d) a steel spoon
34. 34.True or false: a pebble sinks in water. (a) False (b) True
35. 35.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
36. 36.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
39. 39.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a dry leaf (d) a coin
40. 40.🛟 Does a coin float or sink in water? (a) sinks (b) floats

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