Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 125 · 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.⚖️ 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 measure it (c) we keep it the same
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
3. 3.🛟 Which of these sinks in water? (a) an iron nail (b) a feather (c) a cork (d) an empty capped bottle
4. 4.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) a results table (d) small test objects
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a towel for spills (d) a results table
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
8. 8.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
10. 10.⚖️ 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) True (b) False
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) an ice cube (d) a pebble
13. 13.True or false: a cork floats on water. (a) False (b) True
14. 14.True or false: a metal key floats on water. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) a ball of clay (d) a steel spoon
16. 16.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) a dry leaf (d) an empty capped bottle
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
19. 19.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) a ping-pong ball (d) a steel spoon
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
21. 21.⚖️ 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 shape of the clay (c) whether it floats (d) the amount of clay
22. 22.🔍 Which is the odd one out? (a) a dry leaf (b) a metal key (c) a pebble (d) a coin
23. 23.True or false: an empty capped bottle floats on water. (a) False (b) True
24. 24.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
26. 26.True or false: a pebble sinks in water. (a) True (b) False
27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
28. 28.True or false: a dry leaf sinks in water. (a) True (b) False
29. 29.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
30. 30.🛟 Which of these floats on water? (a) a piece of thermocol (b) a metal key (c) a pebble (d) a glass marble
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
32. 32.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a towel for spills (d) turmeric powder
34. 34.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
35. 35.⚖️ 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) False (b) True
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
37. 37.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
38. 38.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a results table (d) a balloon
40. 40.🧺 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) a balloon

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