Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 429 · 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 ice-cream stick (b) a cork (c) a glass marble (d) a feather
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
4. 4.🧺 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 towel for spills (d) a magnet
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
7. 7.⚖️ 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) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the kind of clay (d) the shape of the clay
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a tub of water (d) a magnet
10. 10.🔮 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
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) turmeric powder (d) a towel for spills
14. 14.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) an ice cube (d) a ball of clay
15. 15.True or false: a dry leaf floats on water. (a) False (b) True
16. 16.🛟 Does a cork float or sink in water? (a) floats (b) sinks
17. 17.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
20. 20.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
21. 21.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a dry leaf (d) an iron nail
23. 23.True or false: a glass marble sinks in water. (a) False (b) True
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) a mirror
25. 25.🥚 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
26. 26.True or false: an empty capped bottle sinks in water. (a) False (b) True
27. 27.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
28. 28.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a mirror (d) a results table
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
33. 33.🛟 Which of these floats on water? (a) a pebble (b) an ice-cream stick (c) a ball of clay (d) a glass marble
34. 34.⚖️ 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 measure it (c) we change it
35. 35.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a cork (c) a dry leaf (d) a steel spoon
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a battery cell (d) turmeric powder
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a towel for spills (d) a tub of water
38. 38.🔍 Which is the odd one out? (a) an ice-cream stick (b) a coin (c) an empty capped bottle (d) a feather
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a magnet (d) a towel for spills
40. 40.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a metal key (d) an ice cube

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