Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 652 · 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 keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
2. 2.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) a metal key (d) a piece of thermocol
3. 3.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
5. 5.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
7. 7.True or false: a piece of thermocol floats on water. (a) False (b) True
8. 8.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
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.⚖️ 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
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a tub of water (d) a battery cell
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
13. 13.⚖️ 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) True (b) False
14. 14.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
15. 15.True or false: an ice cube sinks in water. (a) True (b) False
16. 16.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a pebble (d) a piece of thermocol
17. 17.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) a dry leaf (d) an ice-cream stick
20. 20.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
21. 21.⚖️ 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
22. 22.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a coin (d) a ping-pong ball
23. 23.True or false: a metal key floats on water. (a) True (b) False
24. 24.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
25. 25.🛟 Does a coin float or sink in water? (a) sinks (b) floats
26. 26.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a dry leaf (d) a pebble
27. 27.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
28. 28.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
29. 29.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a steel spoon (d) an empty capped bottle
30. 30.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) an ice cube (d) a pebble
31. 31.True or false: a ping-pong ball floats on water. (a) True (b) False
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a magnet
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 change it (c) we measure it
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) yeast (d) a results table
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) a battery cell
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
39. 39.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
40. 40.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes

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