Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 365 · 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 piece of thermocol (b) an ice cube (c) a glass marble (d) a cork
2. 2.⚖️ 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
3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
4. 4.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) a ping-pong ball (d) a piece of thermocol
5. 5.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
7. 7.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) turmeric powder (d) small test objects
9. 9.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
10. 10.True or false: a cork sinks in water. (a) True (b) False
11. 11.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.⚖️ 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
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) turmeric powder
15. 15.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an empty capped bottle (d) a ball of clay
16. 16.True or false: a metal key sinks in water. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) an ice cube (b) a piece of thermocol (c) a pebble (d) a ping-pong ball
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
19. 19.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
20. 20.🧺 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 mirror
21. 21.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a balloon (d) a tub of water
23. 23.True or false: a ball of clay sinks in water. (a) True (b) False
24. 24.🧺 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) a tub of water (d) yeast
25. 25.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
26. 26.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a battery cell
30. 30.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 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
32. 32.⚖️ 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 tub of water
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
35. 35.True or false: a piece of thermocol sinks in water. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an empty capped bottle (d) a ball of clay
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 amount of clay (b) the shape of the clay (c) the kind of clay (d) whether it floats
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a battery cell
39. 39.🧺 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 magnet (d) small test objects
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) a balloon

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