Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 990 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
2. 2.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
3. 3.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 Does a cork float or sink in water? (a) sinks (b) floats
5. 5.⚖️ 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
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a glass marble (d) a ping-pong ball
8. 8.🔍 Which is the odd one out? (a) a steel spoon (b) an ice-cream stick (c) an iron nail (d) a glass marble
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) a battery cell (d) turmeric powder
10. 10.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a cork (d) a glass marble
12. 12.🛟 Which of these floats on water? (a) a ping-pong ball (b) a metal key (c) a coin (d) a steel spoon
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
15. 15.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a dry leaf (c) a piece of thermocol (d) a coin
16. 16.True or false: an iron nail floats on water. (a) True (b) False
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a towel for spills (d) a magnet
18. 18.🛟 Does a feather float or sink in water? (a) floats (b) sinks
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) a towel for spills (d) a tub of water
20. 20.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
21. 21.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) ice is very cold (d) water is sticky
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
24. 24.⚖️ 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) the kind of clay (d) whether it floats
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a tub of water (d) small test objects
27. 27.⚖️ 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
28. 28.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a piece of thermocol (d) an iron nail
29. 29.🛟 Which of these floats on water? (a) a dry leaf (b) a steel spoon (c) a glass marble (d) a coin
30. 30.🧺 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 results table (d) turmeric powder
31. 31.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a towel for spills (d) a tub of water
33. 33.🛟 Which of these floats on water? (a) a piece of thermocol (b) a pebble (c) a glass marble (d) a coin
34. 34.True or false: a coin floats on water. (a) True (b) False
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a mirror
37. 37.⚖️ 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) True (b) False
38. 38.⚖️ 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 measure it (b) we keep it the same (c) we change it
39. 39.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
40. 40.🔮 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

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