Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 171 · 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 splash everyone (d) to hide the corks
2. 2.True or false: a coin floats on water. (a) False (b) True
3. 3.⚖️ 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) the amount of clay (c) whether it floats
4. 4.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
5. 5.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a towel for spills (d) a tub of water
8. 8.True or false: a pebble sinks in water. (a) False (b) True
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) turmeric powder (d) a towel for spills
10. 10.True or false: a dry leaf floats on water. (a) False (b) True
11. 11.🛟 Which of these floats on water? (a) a steel spoon (b) an ice-cream stick (c) a metal key (d) an iron nail
12. 12.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
13. 13.True or false: a glass marble sinks in water. (a) False (b) True
14. 14.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
15. 15.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a cork (d) a glass marble
16. 16.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a tub of water (d) small test objects
19. 19.True or false: an empty capped bottle sinks in water. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) a metal key (d) a cork
21. 21.⚖️ 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 change it (c) we measure it
22. 22.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
24. 24.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ball of clay (c) a piece of thermocol (d) an ice cube
25. 25.⚖️ 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 kind of clay (c) the shape of the clay (d) whether it floats
26. 26.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
28. 28.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a dry leaf (d) a metal key
29. 29.True or false: a feather floats on water. (a) True (b) False
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a magnet (d) a towel for spills
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 the one thing we change. (a) True (b) False
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) turmeric powder (d) a balloon
34. 34.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
35. 35.🛟 Does a cork float or sink in water? (a) sinks (b) floats
36. 36.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
37. 37.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
38. 38.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a balloon (d) a tub of water
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) turmeric powder (d) yeast

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