Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 549 · 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.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a glass marble (d) a cork
2. 2.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) a metal key (d) an empty capped bottle
3. 3.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a ping-pong ball (d) a ball of clay
4. 4.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
6. 6.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
7. 7.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
8. 8.⚖️ 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 change it (b) we measure it (c) we keep it the same
9. 9.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a results table (d) small test objects
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) turmeric powder (d) a magnet
16. 16.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) turmeric powder (d) a magnet
19. 19.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
21. 21.True or false: an ice-cream stick sinks in water. (a) True (b) False
22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) a cork (d) an ice cube
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
24. 24.True or false: a piece of thermocol sinks in water. (a) False (b) True
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
26. 26.🧺 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 results table (d) a mirror
27. 27.True or false: a metal key floats on water. (a) False (b) True
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) small test objects (d) a tub of water
29. 29.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a steel spoon (d) an empty capped bottle
30. 30.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) a coin (d) an empty capped bottle
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a cork (d) a glass marble
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 change it (b) we keep it the same (c) we measure it
34. 34.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) yeast (d) a results table
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a mirror
38. 38.🛟 Which of these floats on water? (a) a ball of clay (b) a metal key (c) an ice-cream stick (d) a coin
39. 39.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 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 balloon (d) a results table

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