Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 746 · 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.True or false: a glass marble floats on water. (a) False (b) True
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a towel for spills
3. 3.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a towel for spills
5. 5.🛟 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
6. 6.True or false: an ice-cream stick sinks in water. (a) False (b) True
7. 7.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
8. 8.🔮 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
9. 9.🧺 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) small test objects (d) a mirror
10. 10.🛟 Does a cork float or sink in water? (a) floats (b) sinks
11. 11.True or false: a piece of thermocol sinks in water. (a) True (b) False
12. 12.⚖️ 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 amount of clay
13. 13.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a glass marble (d) a ping-pong ball
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a tub of water (d) a towel for spills
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) small test objects (d) a tub of water
16. 16.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
17. 17.⚖️ 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 tub of water
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
19. 19.⚖️ 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 amount of clay (d) whether it floats
20. 20.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
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 amount of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
25. 25.⚖️ 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 change it (b) we keep it the same (c) we measure it
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a balloon (d) a magnet
28. 28.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) an empty capped bottle (d) a glass marble
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
33. 33.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
34. 34.🛟 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) leave water on the floor (d) run around the tub
35. 35.True or false: an iron nail floats on water. (a) False (b) True
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a results table (d) small test objects
38. 38.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a ping-pong ball (d) a metal key
39. 39.True or false: a metal key sinks in water. (a) False (b) True
40. 40.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True

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