Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 769 · 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: a metal key sinks in water. (a) True (b) False
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) a tub of water
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
4. 4.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
5. 5.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a pebble (c) a cork (d) a piece of thermocol
6. 6.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
9. 9.True or false: a feather floats on water. (a) True (b) False
10. 10.🧺 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 battery cell (d) small test objects
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a towel for spills (d) a magnet
12. 12.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
13. 13.🧊 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
14. 14.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) a ball of clay (d) a metal key
15. 15.⚖️ 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
16. 16.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a mirror (d) a tub of water
22. 22.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a glass marble (d) a dry leaf
23. 23.True or false: a ping-pong ball sinks in water. (a) False (b) True
24. 24.⚖️ 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) False (b) True
25. 25.🛟 Which of these sinks in water? (a) a metal key (b) a ping-pong ball (c) a feather (d) a dry leaf
26. 26.🔍 Which is the odd one out? (a) a metal key (b) an empty capped bottle (c) a pebble (d) a coin
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
29. 29.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
30. 30.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ 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 keep it the same (c) we measure it
33. 33.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
35. 35.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
36. 36.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a coin (d) a dry leaf
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) the kind of clay (b) the tub of water (c) the amount of clay (d) the shape of the clay
38. 38.⚖️ 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) False (b) True
39. 39.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: a piece of thermocol floats on water. (a) False (b) True

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