Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 703 · 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) an ice-cream stick (c) a metal key (d) a dry leaf
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
3. 3.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a battery cell (d) a towel for spills
5. 5.True or false: a feather floats on water. (a) True (b) False
6. 6.⚖️ 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
7. 7.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
8. 8.🛟 Which of these floats on water? (a) an ice cube (b) an iron nail (c) a metal key (d) a steel spoon
9. 9.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.⚖️ 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) True (b) False
13. 13.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a magnet (d) small test objects
15. 15.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
16. 16.True or false: a ball of clay floats on water. (a) True (b) False
17. 17.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
19. 19.True or false: a piece of thermocol sinks in water. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a magnet (d) turmeric powder
22. 22.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a steel spoon (d) a piece of thermocol
23. 23.🧺 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 towel for spills (d) a mirror
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
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 kept the same. (a) True (b) False
26. 26.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
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 keep it the same (b) we measure it (c) we change it
28. 28.True or false: a metal key floats on water. (a) False (b) True
29. 29.🛟 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) leave water on the floor (d) run around the tub
30. 30.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
35. 35.⚖️ 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
36. 36.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a pebble (d) an iron nail
39. 39.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a results table (d) a battery cell

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