Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 734 · 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.⚖️ 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 shape of the clay (b) the kind of clay (c) whether it floats (d) the amount of clay
2. 2.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
3. 3.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
5. 5.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an iron nail (d) a cork
6. 6.True or false: a steel spoon floats on water. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) an empty capped bottle (d) an ice cube
8. 8.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 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
10. 10.⚖️ 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
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a mirror
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a magnet (d) small test objects
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) small test objects
15. 15.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
17. 17.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) yeast
19. 19.True or false: an ice-cream stick floats on water. (a) False (b) True
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) turmeric powder (d) a results table
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) yeast (d) a results table
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
27. 27.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
28. 28.⚖️ 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) False (b) True
29. 29.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a cork (d) a pebble
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
32. 32.🛟 Does a cork float or sink in water? (a) sinks (b) floats
33. 33.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a ping-pong ball (d) an iron nail
34. 34.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a balloon (d) a tub of water

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