Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 323 · 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.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a balloon (d) small test objects
2. 2.🔍 Which is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a pebble (d) a metal key
3. 3.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a pebble (d) an ice cube
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a results table (d) a towel for spills
6. 6.🛟 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
7. 7.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
10. 10.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a pebble (d) a glass marble
11. 11.🧺 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 balloon (d) a results table
12. 12.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a coin (d) a cork
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) an iron nail (d) an ice cube
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
18. 18.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a feather (d) an iron nail
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
20. 20.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.⚖️ 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
23. 23.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
24. 24.True or false: a pebble floats on water. (a) True (b) False
25. 25.⚖️ 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 tub of water (b) the kind of clay (c) the amount of clay (d) the shape of the clay
26. 26.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
27. 27.True or false: a coin sinks in water. (a) False (b) True
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) turmeric powder (d) yeast
29. 29.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
30. 30.⚖️ 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
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
32. 32.🛟 Does a feather float or sink in water? (a) floats (b) sinks
33. 33.True or false: a feather floats on water. (a) False (b) True
34. 34.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
35. 35.True or false: an ice-cream stick sinks in water. (a) True (b) False
36. 36.🛟 Which of these sinks in water? (a) a ball of clay (b) a piece of thermocol (c) an ice cube (d) a dry leaf
37. 37.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
38. 38.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) a magnet
40. 40.True or false: an empty capped bottle sinks in water. (a) True (b) False

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