Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 139 · 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 win a prize (c) to hide the corks (d) to splash everyone
2. 2.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a dry leaf (d) a ball of clay
4. 4.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
5. 5.🧺 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
6. 6.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
8. 8.True or false: a ball of clay floats on water. (a) False (b) True
9. 9.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a cork (c) a coin (d) an ice cube
10. 10.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) an iron nail (d) a piece of thermocol
11. 11.⚖️ 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) False (b) True
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a tub of water (d) small test objects
13. 13.⚖️ 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 kind of clay
14. 14.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
17. 17.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a steel spoon (c) a feather (d) a cork
18. 18.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
22. 22.⚖️ 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
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
24. 24.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
26. 26.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
27. 27.⚖️ 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) True (b) False
28. 28.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) a coin (d) an ice-cream stick
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) yeast
31. 31.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) small test objects (d) a tub of water
33. 33.⚖️ 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
34. 34.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
35. 35.True or false: a pebble floats on water. (a) True (b) False
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.⚖️ 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) False (b) True
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) whether it floats (d) the kind of clay
39. 39.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
40. 40.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats

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