Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 92 · 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.🛟 Does a cork float or sink in water? (a) floats (b) sinks
2. 2.🔮 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
3. 3.True or false: a ping-pong ball sinks in water. (a) True (b) False
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
5. 5.True or false: a dry leaf sinks in water. (a) True (b) False
6. 6.⚖️ 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
7. 7.🛟 Which of these sinks in water? (a) a cork (b) a feather (c) a metal key (d) an ice-cream stick
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
9. 9.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
10. 10.True or false: a metal key floats on water. (a) False (b) True
11. 11.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ball of clay (c) a dry leaf (d) a ping-pong ball
12. 12.⚖️ 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) whether it floats (c) the amount of clay (d) the shape of the clay
13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
14. 14.🛟 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
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the amount of clay (d) the tub of water
16. 16.🧺 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) a mirror
17. 17.⚖️ 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
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
21. 21.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a mirror (d) a results table
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a magnet (d) a battery cell
24. 24.⚖️ 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
25. 25.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
26. 26.True or false: a glass marble floats on water. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a towel for spills (d) small test objects
28. 28.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
29. 29.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: a pebble floats on water. (a) True (b) False
31. 31.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a towel for spills (d) a tub of water
34. 34.🛟 Which of these sinks in water? (a) a feather (b) a dry leaf (c) a pebble (d) an ice-cream stick
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a magnet (d) yeast
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
37. 37.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
40. 40.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed

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