Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 458 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
2. 2.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
3. 3.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a dry leaf (d) a ball of clay
4. 4.⚖️ 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 keep it the same (c) we change it
5. 5.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) an iron nail (d) an empty capped bottle
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the kind of clay
7. 7.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a steel spoon (d) a ball of clay
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a towel for spills (d) a results table
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
10. 10.True or false: a ball of clay sinks in water. (a) True (b) False
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a towel for spills (d) a tub of water
12. 12.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) an iron nail (d) a piece of thermocol
13. 13.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a ping-pong ball (c) a glass marble (d) an ice-cream stick
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
15. 15.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) an iron nail (d) a metal key
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
18. 18.⚖️ 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
19. 19.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
20. 20.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
21. 21.True or false: a dry leaf sinks in water. (a) False (b) True
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) turmeric powder
24. 24.🛟 Which of these floats on water? (a) an iron nail (b) a feather (c) a steel spoon (d) a glass marble
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 shape of the clay (c) the amount of clay
26. 26.True or false: a glass marble sinks in water. (a) True (b) False
27. 27.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
28. 28.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
29. 29.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a tub of water (d) small test objects
31. 31.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) a pebble (d) a feather
32. 32.True or false: a metal key sinks in water. (a) True (b) False
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
35. 35.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
36. 36.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks

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