Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 144 · 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 not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a results table (d) small test objects
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) turmeric powder
5. 5.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
6. 6.🛟 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
7. 7.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) a coin (d) a ping-pong ball
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
9. 9.⚖️ 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 kind of clay (c) the shape of the clay
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
11. 11.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a feather (d) a metal key
12. 12.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
14. 14.True or false: an empty capped bottle sinks in water. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) a coin (d) an iron nail
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a magnet (d) yeast
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) False (b) True
18. 18.⚖️ 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
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
22. 22.True or false: a coin sinks in water. (a) True (b) False
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the kind of clay (d) the shape of the clay
24. 24.🧺 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) a results table (d) turmeric powder
25. 25.⚖️ 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 tub of water (c) the shape of the clay
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a mirror (d) a towel for spills
27. 27.🧺 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 battery cell (d) a results table
28. 28.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
29. 29.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
30. 30.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) an empty capped bottle (d) an iron nail
31. 31.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) an iron nail (d) an ice-cream stick
32. 32.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
33. 33.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ 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 measure it (c) we change it
35. 35.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
36. 36.⚖️ 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
37. 37.🛟 Does a cork float or sink in water? (a) sinks (b) floats
38. 38.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
39. 39.True or false: a dry leaf floats on water. (a) False (b) True
40. 40.True or false: a ping-pong ball sinks in water. (a) False (b) True

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