Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 762 · 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.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
2. 2.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
3. 3.⚖️ 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) False (b) True
4. 4.⚖️ 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
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) a glass marble (d) a dry leaf
8. 8.True or false: an empty capped bottle floats on water. (a) False (b) True
9. 9.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an iron nail (c) an ice-cream stick (d) a cork
10. 10.⚖️ 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) True (b) False
11. 11.⚖️ 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
12. 12.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) an empty capped bottle (d) a glass marble
15. 15.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a metal key (d) a piece of thermocol
17. 17.🔍 Which is the odd one out? (a) an ice cube (b) a piece of thermocol (c) a dry leaf (d) a ball of clay
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a battery cell (d) a towel for spills
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
21. 21.⚖️ 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
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
23. 23.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
25. 25.🔮 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 turns to stone (d) it can float
26. 26.🛟 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
27. 27.True or false: a ping-pong ball floats on water. (a) True (b) False
28. 28.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a glass marble (d) a dry leaf
29. 29.🛟 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
30. 30.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
31. 31.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) an ice cube (d) a steel spoon
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
34. 34.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
36. 36.⚖️ 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) the shape of the clay (c) whether it floats
37. 37.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
39. 39.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True

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