Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 748 · 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.⚖️ 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
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
3. 3.🛟 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
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) a towel for spills (d) a results table
5. 5.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a steel spoon (d) a ping-pong ball
6. 6.🛟 Does a cork float or sink in water? (a) floats (b) sinks
7. 7.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
9. 9.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ 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 kind of clay (c) whether it floats
12. 12.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
13. 13.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
14. 14.🧺 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) a magnet (d) a towel for spills
15. 15.⚖️ 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) True (b) False
16. 16.True or false: a cork floats on water. (a) False (b) True
17. 17.🛟 Which of these sinks in water? (a) an ice cube (b) a metal key (c) a cork (d) an empty capped bottle
18. 18.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) more plain water (d) a little shaking
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 mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) a dry leaf (d) a pebble
22. 22.🛟 Does a coin float or sink in water? (a) floats (b) sinks
23. 23.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
25. 25.🛟 Does a feather float or sink in water? (a) floats (b) sinks
26. 26.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
27. 27.⚖️ 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
28. 28.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
29. 29.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) a tub of water
31. 31.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
32. 32.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the kind of clay (d) the shape of the clay
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) the tub of water (d) whether it floats
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a towel for spills (d) a magnet
36. 36.True or false: a steel spoon sinks in water. (a) False (b) True
37. 37.True or false: a ball of clay floats on water. (a) False (b) True
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a metal key (d) a piece of thermocol
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts

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