Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 309 · 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 does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
2. 2.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) an empty capped bottle (d) a steel spoon
3. 3.⚖️ 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) the tub of water (c) the shape of the clay (d) whether it floats
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a results table (d) small test objects
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) yeast (d) a battery cell
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a results table (d) yeast
7. 7.🚢 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
8. 8.🧺 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) turmeric powder (d) a towel for spills
9. 9.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
10. 10.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a piece of thermocol (d) a metal key
11. 11.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) a feather (d) a steel spoon
12. 12.⚖️ 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 tub of water (b) the amount of clay (c) whether it floats (d) the shape of the clay
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a tub of water (d) a towel for spills
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
15. 15.🛟 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 hide the corks (d) to win a prize
16. 16.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
17. 17.🧺 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 tub of water (d) a balloon
18. 18.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
19. 19.⚖️ 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
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a mirror (d) a results table
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a battery cell (d) a results table
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a mirror (c) yeast (d) turmeric powder
25. 25.🛟 Does a coin float or sink in water? (a) sinks (b) floats
26. 26.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a pebble (c) an ice cube (d) an ice-cream stick
27. 27.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) a coin (d) a cork
28. 28.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
29. 29.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ 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
31. 31.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a magnet
34. 34.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) an ice cube (d) a steel spoon
35. 35.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a cork (d) a metal key
36. 36.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: a pebble floats on water. (a) True (b) False
38. 38.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a glass marble (d) an ice cube
39. 39.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
40. 40.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True

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