Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 577 · 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? True or false: the kind of clay is the one thing we change. (a) False (b) True
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) turmeric powder (d) a towel for spills
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the tub of water (c) the shape of the clay
4. 4.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) an ice-cream stick (d) a glass marble
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
8. 8.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a pebble (d) a cork
9. 9.⚖️ 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 measure it (b) we change it (c) we keep it the same
10. 10.🥚 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
11. 11.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
12. 12.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice-cream stick (c) a cork (d) a coin
13. 13.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) an empty capped bottle (d) a ball of clay
14. 14.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) a pebble (d) an ice cube
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a results table (d) a tub of water
16. 16.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
17. 17.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) turmeric powder (d) a results table
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) yeast
20. 20.🚢 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
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) a pebble (d) a piece of thermocol
23. 23.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
24. 24.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
26. 26.⚖️ 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
27. 27.True or false: a steel spoon sinks in water. (a) False (b) True
28. 28.True or false: a ping-pong ball sinks in water. (a) True (b) False
29. 29.True or false: a piece of thermocol sinks in water. (a) False (b) True
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
31. 31.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
33. 33.🔍 Which is the odd one out? (a) an ice cube (b) an iron nail (c) a coin (d) a pebble
34. 34.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) yeast (d) a magnet
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the kind of clay (c) the amount of clay (d) whether it floats
38. 38.🛟 Which of these floats on water? (a) a coin (b) a dry leaf (c) a pebble (d) a glass marble
39. 39.⚖️ 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
40. 40.⚖️ 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 shape of the clay (c) the kind of clay (d) the tub of water

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