Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 340 · 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 is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a battery cell (d) a results table
2. 2.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a coin (d) an ice cube
3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
4. 4.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
8. 8.🛟 Which of these floats on water? (a) a coin (b) an ice-cream stick (c) a steel spoon (d) an iron nail
9. 9.True or false: a ball of clay floats on water. (a) True (b) False
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the kind of clay
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a towel for spills (d) a results table
15. 15.⚖️ 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) False (b) True
16. 16.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
17. 17.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
18. 18.🛟 Which of these sinks in water? (a) a steel spoon (b) an ice-cream stick (c) a cork (d) an empty capped bottle
19. 19.🛟 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 keep children safe (d) to splash everyone
20. 20.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the tub (d) the cork itself
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a balloon (d) yeast
22. 22.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) an ice cube (d) a ball of clay
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
24. 24.🔍 Which is the odd one out? (a) a coin (b) a piece of thermocol (c) a cork (d) an empty capped bottle
25. 25.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
26. 26.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
27. 27.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a piece of thermocol (d) a ball of clay
28. 28.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a battery cell (d) a tub of water
30. 30.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) yeast
32. 32.🛟 Does a coin float or sink in water? (a) floats (b) sinks
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a steel spoon (d) a cork
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
36. 36.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
37. 37.🔍 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
38. 38.True or false: a feather floats on water. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) an iron nail (d) a coin
40. 40.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats

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