Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 485 · 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) True (b) False
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a tub of water (d) a towel for spills
4. 4.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ 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) the shape of the clay (c) whether it floats (d) the tub of water
6. 6.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a coin (d) a pebble
7. 7.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a ping-pong ball (d) an ice cube
8. 8.True or false: a pebble floats on water. (a) True (b) False
9. 9.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
10. 10.🛟 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) run around the tub (d) leave water on the floor
11. 11.True or false: an ice cube sinks in water. (a) True (b) False
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
14. 14.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a coin (d) a feather
15. 15.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
17. 17.True or false: a piece of thermocol sinks in water. (a) True (b) False
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 measure it (b) we keep it the same (c) we change it
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) a battery cell
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) a tub of water (d) small test objects
23. 23.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
24. 24.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
25. 25.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
26. 26.🛟 Which of these floats on water? (a) a ping-pong ball (b) a ball of clay (c) a coin (d) a pebble
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) small test objects (d) a towel for spills
28. 28.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) an iron nail (d) a piece of thermocol
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) a results table
30. 30.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
31. 31.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) a cork (d) a steel spoon
32. 32.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
35. 35.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
36. 36.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ 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 change it (b) we measure it (c) we keep it the same
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
39. 39.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
40. 40.True or false: a ball of clay floats on water. (a) False (b) True

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