Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 102 · 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.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a results table (d) turmeric powder
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a glass marble (d) a ball of clay
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) turmeric powder (d) a tub of water
5. 5.⚖️ 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
6. 6.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
7. 7.True or false: an ice cube floats on water. (a) False (b) True
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a tub of water (d) small test objects
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) yeast (d) a tub of water
11. 11.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
13. 13.True or false: a feather floats on water. (a) False (b) True
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 battery cell (c) small test objects (d) a results table
15. 15.🔮 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
16. 16.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a ball of clay (c) a cork (d) a dry leaf
17. 17.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) a metal key (d) a feather
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a results table (d) small test objects
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
21. 21.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.🧺 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) yeast (d) small test objects
24. 24.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a cork (b) a coin (c) an ice-cream stick (d) an empty capped bottle
27. 27.True or false: a piece of thermocol sinks in water. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) an iron nail (d) a metal key
29. 29.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a battery cell (d) a tub of water
31. 31.⚖️ 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) False (b) True
32. 32.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
34. 34.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
35. 35.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
36. 36.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
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 tub of water (b) the kind of clay (c) the amount of clay (d) the shape of the clay
38. 38.True or false: a metal key floats on water. (a) False (b) True
39. 39.⚖️ 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
40. 40.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed

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