Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 366 · 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 cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
2. 2.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a tub of water (d) a magnet
4. 4.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
5. 5.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a cork (d) a steel spoon
6. 6.True or false: a pebble sinks in water. (a) False (b) True
7. 7.🧺 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 magnet
8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
9. 9.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a cork (d) an iron nail
10. 10.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a dry leaf (d) a pebble
11. 11.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
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 amount of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
13. 13.⚖️ 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 change it (b) we measure it (c) we keep it the same
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a results table
16. 16.True or false: an iron nail sinks in water. (a) True (b) False
17. 17.⚖️ 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 tub of water (c) the shape of the clay
18. 18.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
20. 20.True or false: a feather sinks in water. (a) False (b) True
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) an ice-cream stick (d) a feather
23. 23.⚖️ 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) whether it floats (c) the amount of clay (d) the tub of water
24. 24.True or false: a cork sinks in water. (a) True (b) False
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
26. 26.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a metal key (c) a coin (d) a cork
28. 28.⚖️ 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
29. 29.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
30. 30.🧺 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) a results table (d) turmeric powder
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) turmeric powder (d) small test objects
33. 33.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
35. 35.True or false: a dry leaf sinks in water. (a) False (b) True
36. 36.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) an ice-cream stick (d) an iron nail
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a battery cell
38. 38.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
39. 39.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
40. 40.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False

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