Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 938 · 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 mirror is needed for the float-or-sink test. (a) False (b) True
2. 2.🧺 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) turmeric powder
3. 3.🛟 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
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) a mirror
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a towel for spills (d) a tub of water
7. 7.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
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.⚖️ 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 shape of the clay (b) the amount of clay (c) the kind of clay (d) the tub of water
11. 11.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 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 battery cell (d) a results table
13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
14. 14.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
15. 15.🛟 Which of these floats on water? (a) a coin (b) an empty capped bottle (c) a glass marble (d) a pebble
16. 16.True or false: a pebble floats on water. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.⚖️ 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
19. 19.True or false: a ping-pong ball sinks in water. (a) True (b) False
20. 20.⚖️ 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
21. 21.True or false: an empty capped bottle floats on water. (a) False (b) True
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a magnet (d) a balloon
23. 23.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a dry leaf (d) a metal key
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a magnet (d) a results table
25. 25.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a tub of water (d) a magnet
28. 28.⚖️ 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 shape of the clay (c) the amount of clay (d) the kind of clay
29. 29.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
30. 30.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
33. 33.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ 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
35. 35.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a pebble (d) a piece of thermocol
36. 36.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: a feather sinks in water. (a) True (b) False
38. 38.🧺 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 towel for spills (d) a magnet
39. 39.True or false: an iron nail floats on water. (a) True (b) False
40. 40.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats

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