Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 975 · 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 big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
2. 2.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
4. 4.True or false: an iron nail sinks in water. (a) True (b) False
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
7. 7.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) an ice cube (d) an ice-cream stick
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
9. 9.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) an empty capped bottle (d) a metal key
10. 10.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
11. 11.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.True or false: a piece of thermocol sinks in water. (a) True (b) False
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
16. 16.True or false: an ice cube floats on water. (a) True (b) False
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a towel for spills (d) small test objects
18. 18.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a steel spoon (d) a glass marble
19. 19.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a glass marble (d) a piece of thermocol
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a tub of water (d) a results table
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) turmeric powder
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a tub of water (d) a results table
28. 28.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) a metal key (d) a cork
29. 29.True or false: a metal key sinks in water. (a) False (b) True
30. 30.🛟 Which of these sinks in water? (a) a feather (b) a ball of clay (c) a piece of thermocol (d) a cork
31. 31.🔍 Which is the odd one out? (a) a steel spoon (b) an ice-cream stick (c) a ping-pong ball (d) an empty capped bottle
32. 32.⚖️ 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) True (b) False
33. 33.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a magnet (d) a results table
35. 35.True or false: a dry leaf floats on water. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) a piece of thermocol (d) an iron nail
37. 37.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
39. 39.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a glass marble (d) a feather
40. 40.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed

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