Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 427 · 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) floats (b) sinks
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
3. 3.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
6. 6.⚖️ 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 tub of water (c) whether it floats
7. 7.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
8. 8.🛟 Which of these floats on water? (a) a steel spoon (b) an ice cube (c) a metal key (d) a pebble
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.🧺 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 mirror (d) a tub of water
11. 11.🧺 Do we need yeast 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? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
14. 14.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
15. 15.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) yeast (d) a towel for spills
17. 17.🧺 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 balloon
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
20. 20.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) a feather (d) an ice cube
21. 21.🚢 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
22. 22.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) an iron nail (d) a cork
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) yeast (d) small test objects
24. 24.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
26. 26.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
27. 27.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
28. 28.⚖️ 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
29. 29.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
31. 31.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) turmeric powder (d) a mirror
33. 33.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
35. 35.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a steel spoon (d) a pebble
38. 38.True or false: an ice-cream stick floats on water. (a) True (b) False
39. 39.⚖️ 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) False (b) True
40. 40.True or false: an empty capped bottle floats on water. (a) True (b) False

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