Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 640 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it dissolves (d) it turns white
2. 2.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) an ice-cream stick (d) an ice cube
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) a results table
4. 4.⚖️ 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) the kind of clay (c) whether it floats
5. 5.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a piece of thermocol (d) a cork
6. 6.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) a metal key (d) an iron nail
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a feather (c) an ice cube (d) a metal key
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a mirror (d) a magnet
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
13. 13.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
14. 14.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
17. 17.🛟 Which of these sinks in water? (a) a steel spoon (b) a ping-pong ball (c) a piece of thermocol (d) an ice cube
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a battery cell (d) yeast
19. 19.⚖️ 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 keep it the same (b) we change it (c) we measure it
20. 20.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
21. 21.🔍 Which is the odd one out? (a) an ice-cream stick (b) a glass marble (c) a cork (d) an empty capped bottle
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a battery cell
24. 24.⚖️ 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 change it (b) we measure it (c) we keep it the same
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) a balloon
26. 26.True or false: a steel spoon floats on water. (a) True (b) False
27. 27.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) a glass marble (d) a coin
29. 29.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) a tub of water
34. 34.⚖️ 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 kind of clay (b) whether it floats (c) the shape of the clay (d) the amount of clay
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a balloon (d) a battery cell
37. 37.🛟 Does a cork float or sink in water? (a) sinks (b) floats
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
39. 39.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) an ice cube (d) a glass marble
40. 40.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False

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