Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 644 · 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 fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
2. 2.🧺 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 results table (d) a balloon
3. 3.🛟 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 splash everyone (d) to keep children safe
4. 4.True or false: a coin sinks in water. (a) False (b) True
5. 5.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 keep it the same (b) we measure it (c) we change it
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a pebble (d) a coin
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a battery cell (d) a balloon
10. 10.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
11. 11.🛟 Does a cork float or sink in water? (a) sinks (b) floats
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a results table (d) a towel for spills
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) yeast (d) turmeric powder
16. 16.True or false: an ice-cream stick floats on water. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a cork (d) a ball of clay
18. 18.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a steel spoon (d) a piece of thermocol
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a towel for spills (d) a tub of water
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
22. 22.True or false: a dry leaf floats on water. (a) False (b) True
23. 23.True or false: a steel spoon sinks in water. (a) True (b) False
24. 24.🧺 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
25. 25.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a tub of water (d) small test objects
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) small test objects (d) a tub of water
28. 28.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
32. 32.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) an ice cube (d) a cork
33. 33.🛟 Does a feather float or sink in water? (a) floats (b) sinks
34. 34.🛟 Which of these floats on water? (a) a cork (b) an iron nail (c) a glass marble (d) a steel spoon
35. 35.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
37. 37.⚖️ 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 kind of clay (c) the shape of the clay
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) a tub of water
39. 39.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a pebble (c) an ice cube (d) a dry leaf
40. 40.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed

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