Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 526 · 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.⚖️ 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
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a balloon (d) a towel for spills
3. 3.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a ball of clay (d) an empty capped bottle
4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
5. 5.True or false: a ping-pong ball sinks in water. (a) True (b) False
6. 6.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
7. 7.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
8. 8.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
11. 11.🛟 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
12. 12.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a ping-pong ball (d) a coin
13. 13.⚖️ 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 amount of clay (b) whether it floats (c) the shape of the clay (d) the kind of clay
14. 14.🛟 Does a coin float or sink in water? (a) sinks (b) floats
15. 15.⚖️ 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
16. 16.⚖️ 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) True (b) False
17. 17.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
18. 18.⚖️ 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) True (b) False
19. 19.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a cork (d) an iron nail
21. 21.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a coin (d) a glass marble
22. 22.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) yeast (d) a tub of water
24. 24.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) a ping-pong ball (d) a glass marble
25. 25.⚖️ 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
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
29. 29.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a battery cell (d) a balloon
31. 31.⚖️ 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 keep it the same (b) we change it (c) we measure it
32. 32.True or false: a ping-pong ball floats on water. (a) False (b) True
33. 33.True or false: a glass marble sinks in water. (a) False (b) True
34. 34.True or false: an empty capped bottle floats on water. (a) True (b) False
35. 35.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
38. 38.True or false: a ball of clay floats on water. (a) False (b) True
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a results table (d) a towel for spills
40. 40.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an empty capped bottle (d) a ball of clay

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