Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 51 · 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.🛟 Does a cork float or sink in water? (a) sinks (b) floats
2. 2.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
4. 4.🛟 Which of these floats on water? (a) a metal key (b) a dry leaf (c) a coin (d) an iron nail
5. 5.⚖️ 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) False (b) True
6. 6.⚖️ 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 amount of clay (d) the kind of clay
7. 7.⚖️ 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) whether it floats (c) the shape of the clay
8. 8.⚖️ 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 amount of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
9. 9.🧺 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) turmeric powder
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
11. 11.🛟 Which of these sinks in water? (a) a cork (b) a ball of clay (c) an empty capped bottle (d) an ice cube
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) run around the tub (d) play near a deep pond
13. 13.True or false: a feather floats on water. (a) False (b) True
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) an ice-cream stick (c) a dry leaf (d) a cork
16. 16.True or false: a piece of thermocol sinks in water. (a) False (b) True
17. 17.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
19. 19.True or false: a glass marble floats on water. (a) False (b) True
20. 20.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a pebble (d) a feather
23. 23.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) a glass marble (d) a steel spoon
24. 24.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a battery cell (d) a results table
26. 26.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
27. 27.True or false: an ice-cream stick sinks in water. (a) True (b) False
28. 28.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
29. 29.⚖️ 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 change it (b) we measure it (c) we keep it the same
30. 30.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a tub of water
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a results table (d) a tub of water
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a magnet (d) a mirror
36. 36.True or false: a dry leaf floats on water. (a) False (b) True
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a balloon
38. 38.⚖️ 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
39. 39.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a steel spoon (d) an empty capped bottle

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