Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 395 · 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.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a dry leaf (d) a steel spoon
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
6. 6.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
8. 8.True or false: an empty capped bottle sinks in water. (a) True (b) False
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
10. 10.True or false: a piece of thermocol sinks in water. (a) True (b) False
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.True or false: an ice cube sinks in water. (a) False (b) True
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) turmeric powder (d) a battery cell
14. 14.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
16. 16.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
17. 17.🚢 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
18. 18.True or false: a ping-pong ball floats on water. (a) False (b) True
19. 19.🥚 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
20. 20.🧺 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 balloon (d) small test objects
21. 21.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
22. 22.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a tub of water (d) a magnet
24. 24.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a steel spoon (d) a dry leaf
25. 25.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
26. 26.True or false: a glass marble floats on water. (a) True (b) False
27. 27.🛟 Does a feather float or sink in water? (a) floats (b) sinks
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a tub of water (d) a towel for spills
29. 29.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
30. 30.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: a ping-pong ball sinks in water. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a dry leaf (b) a feather (c) an empty capped bottle (d) a coin
33. 33.⚖️ 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 shape of the clay (c) the kind of clay (d) whether it floats
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
35. 35.⚖️ 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
36. 36.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
38. 38.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a coin (d) an empty capped bottle
39. 39.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
40. 40.⚖️ 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) False (b) True

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