Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 863 · 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? True or false: the kind of clay is kept the same. (a) False (b) True
2. 2.⚖️ 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 tub of water (c) the amount of clay (d) the kind of clay
3. 3.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) a ping-pong ball (d) a metal key
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) small test objects
5. 5.True or false: a glass marble sinks in water. (a) False (b) True
6. 6.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
7. 7.⚖️ 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 keep it the same (b) we measure it (c) we change it
8. 8.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
9. 9.⚖️ 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) whether it floats (c) the kind of clay
10. 10.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) yeast (d) a magnet
14. 14.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
16. 16.🧺 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) a magnet (d) a tub of water
17. 17.⚖️ 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 amount of clay (c) whether it floats
18. 18.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a mirror
20. 20.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
21. 21.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
22. 22.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
24. 24.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a battery cell (d) small test objects
26. 26.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
27. 27.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
28. 28.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a cork (d) a coin
29. 29.⚖️ 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
30. 30.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
31. 31.⚖️ 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) whether it floats (d) the shape of the clay
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a battery cell (d) a mirror
34. 34.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) a metal key (d) an ice cube
35. 35.True or false: a cork floats on water. (a) True (b) False
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
37. 37.🛟 Does a cork float or sink in water? (a) sinks (b) floats
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a magnet (d) small test objects
40. 40.True or false: an iron nail floats on water. (a) True (b) False

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