Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 688 · 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 is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a metal key (d) a pebble
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a mirror (d) a magnet
3. 3.🛟 Does a feather float or sink in water? (a) sinks (b) floats
4. 4.⚖️ 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) whether it floats (c) the shape of the clay (d) the kind of clay
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
6. 6.🛟 Does a coin float or sink in water? (a) sinks (b) floats
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a tub of water
8. 8.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) an ice-cream stick (d) an iron nail
9. 9.⚖️ 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
10. 10.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
11. 11.🧺 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) small test objects (d) yeast
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) small test objects
13. 13.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
14. 14.⚖️ 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 change it (c) we keep it the same
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 keep it the same (b) we measure it (c) we change it
16. 16.🛟 Which of these sinks in water? (a) a feather (b) a glass marble (c) a cork (d) a ping-pong ball
17. 17.⚖️ 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
18. 18.True or false: a coin sinks in water. (a) True (b) False
19. 19.⚖️ 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 shape of the clay (c) the amount of clay
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) a towel for spills (d) a tub of water
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a tub of water (d) a towel for spills
22. 22.🛟 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
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) whether it floats (d) the shape of the clay
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
25. 25.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
27. 27.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a tub of water (d) turmeric powder
29. 29.⚖️ 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) False (b) True
30. 30.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
31. 31.True or false: a dry leaf sinks in water. (a) False (b) True
32. 32.⚖️ 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
33. 33.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
34. 34.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a ball of clay (b) an ice cube (c) a pebble (d) a coin
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
38. 38.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
39. 39.🛟 Does a cork float or sink in water? (a) sinks (b) floats
40. 40.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a ping-pong ball (d) a ball of clay

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