Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 925 · 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.True or false: an ice cube sinks in water. (a) True (b) False
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
3. 3.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a piece of thermocol (d) a metal key
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
5. 5.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
6. 6.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
7. 7.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
8. 8.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a balloon
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) turmeric powder (d) a results table
11. 11.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
12. 12.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a ping-pong ball (d) a pebble
13. 13.🛟 Which of these floats on water? (a) a feather (b) a metal key (c) a steel spoon (d) a coin
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
17. 17.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) an ice cube (d) a metal key
18. 18.True or false: an ice-cream stick floats on water. (a) False (b) True
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a tub of water (d) a results table
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
24. 24.🛟 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
25. 25.⚖️ 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 measure it (b) we keep it the same (c) we change it
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a towel for spills (d) a tub of water
28. 28.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
29. 29.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) an ice-cream stick (d) a metal key
31. 31.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
32. 32.🚢 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
33. 33.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a pebble (d) a cork
35. 35.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the amount of clay (c) whether it floats
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
38. 38.True or false: a feather floats on water. (a) True (b) False
39. 39.⚖️ 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 keep it the same (b) we change it (c) we measure it
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False

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