Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 105 · 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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
2. 2.⚖️ 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 keep it the same (b) we measure it (c) we change it
3. 3.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
4. 4.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) small test objects (d) a results table
6. 6.🛟 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
7. 7.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
8. 8.🛟 Does a cork float or sink in water? (a) floats (b) sinks
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a tub of water (d) a results table
10. 10.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
11. 11.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
12. 12.True or false: a coin sinks in water. (a) False (b) True
13. 13.⚖️ 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
14. 14.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
15. 15.True or false: a pebble floats on water. (a) False (b) True
16. 16.True or false: an ice cube floats on water. (a) False (b) True
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
18. 18.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a feather (d) a ping-pong ball
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) yeast (d) a mirror
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a balloon (d) a magnet
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
22. 22.🔍 Which is the odd one out? (a) an iron nail (b) an empty capped bottle (c) an ice-cream stick (d) a dry leaf
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
25. 25.True or false: an ice-cream stick sinks in water. (a) True (b) False
26. 26.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a battery cell
28. 28.🔍 Which is the odd one out? (a) a pebble (b) a feather (c) a piece of thermocol (d) a ping-pong ball
29. 29.🛟 Which of these sinks in water? (a) an ice cube (b) a ball of clay (c) a ping-pong ball (d) a feather
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a magnet (d) turmeric powder
31. 31.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) turmeric powder
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
34. 34.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) an iron nail (d) a feather
36. 36.🛟 Which of these floats on water? (a) a piece of thermocol (b) a coin (c) a steel spoon (d) a glass marble
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🚢 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
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a tub of water (d) turmeric powder
40. 40.🔍 Which is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a steel spoon (d) a coin

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