Floating and Sinking Experiment Worksheet

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

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