Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 453 · 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.🛟 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
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a towel for spills (d) a magnet
3. 3.🧺 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 battery cell (d) a tub of water
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) a mirror (d) turmeric powder
6. 6.🔍 Which is the odd one out? (a) a dry leaf (b) a coin (c) a cork (d) a piece of thermocol
7. 7.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a dry leaf (b) a glass marble (c) a coin (d) a metal key
9. 9.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) turmeric powder (d) a towel for spills
11. 11.🛟 Which of these sinks in water? (a) a pebble (b) a dry leaf (c) a ping-pong ball (d) an ice-cream stick
12. 12.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) an ice cube (d) an iron nail
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
16. 16.True or false: a glass marble sinks in water. (a) False (b) True
17. 17.True or false: an empty capped bottle floats on water. (a) True (b) False
18. 18.⚖️ 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
19. 19.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
20. 20.⚖️ 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
21. 21.⚖️ 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 tub of water (c) the kind of clay (d) the amount of clay
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
23. 23.🛟 Which of these sinks in water? (a) a coin (b) a ping-pong ball (c) a dry leaf (d) a feather
24. 24.True or false: a feather sinks in water. (a) False (b) True
25. 25.True or false: an ice cube floats on water. (a) False (b) True
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a results table
27. 27.⚖️ 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 keep it the same (c) we measure it
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
29. 29.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
31. 31.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
33. 33.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
34. 34.🛟 Which of these sinks in water? (a) a feather (b) a piece of thermocol (c) a ping-pong ball (d) a glass marble
35. 35.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
38. 38.⚖️ 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) the shape of the clay (c) whether it floats
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
40. 40.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True

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