Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 318 · 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 win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) small test objects (d) a towel for spills
4. 4.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the tub of water (c) the kind of clay (d) whether it floats
7. 7.True or false: a piece of thermocol sinks in water. (a) False (b) True
8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a battery cell (d) a mirror
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
12. 12.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
13. 13.True or false: a steel spoon sinks in water. (a) False (b) True
14. 14.🛟 Which of these sinks in water? (a) a dry leaf (b) a feather (c) a metal key (d) an ice-cream stick
15. 15.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🛟 Which of these floats on water? (a) a pebble (b) a dry leaf (c) a glass marble (d) a metal key
18. 18.🔍 Which is the odd one out? (a) an iron nail (b) a dry leaf (c) a feather (d) an ice-cream stick
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a mirror (d) a tub of water
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a magnet (d) a tub of water
21. 21.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
22. 22.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) a balloon
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
26. 26.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a dry leaf (d) a ball of clay
27. 27.True or false: a pebble floats on water. (a) True (b) False
28. 28.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
29. 29.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a coin (d) an ice cube
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a results table (d) a balloon
31. 31.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a pebble (c) an empty capped bottle (d) a ping-pong ball
32. 32.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
33. 33.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ 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 amount of clay (c) whether it floats
35. 35.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
36. 36.⚖️ 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
37. 37.True or false: a pebble sinks in water. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) a steel spoon (d) a pebble
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a balloon
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape

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