Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 239 · 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 tub of water is kept the same. (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) a mirror (c) a results table (d) a towel for spills
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a pebble (d) a feather
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 measure it (c) we keep it the same
6. 6.🛟 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
7. 7.⚖️ 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
8. 8.True or false: a glass marble floats on water. (a) False (b) True
9. 9.⚖️ 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 kind of clay (c) the tub of water (d) the shape of the clay
10. 10.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table
13. 13.True or false: a feather floats on water. (a) True (b) False
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) its hollow shape (d) it has a magnet
16. 16.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
17. 17.⚖️ 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 amount of clay (c) whether it floats
18. 18.True or false: a ball of clay floats on water. (a) False (b) True
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a towel for spills (d) a balloon
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
21. 21.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
22. 22.⚖️ 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
23. 23.True or false: an ice-cream stick floats on water. (a) False (b) True
24. 24.🧊 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
25. 25.🛟 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
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
27. 27.🧺 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) a magnet (d) a results table
28. 28.🛟 Which of these sinks in water? (a) a cork (b) an iron nail (c) a ping-pong ball (d) a feather
29. 29.True or false: an ice-cream stick sinks in water. (a) True (b) False
30. 30.⚖️ 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
31. 31.🛟 Which of these floats on water? (a) a ping-pong ball (b) a metal key (c) a glass marble (d) a steel spoon
32. 32.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
33. 33.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🛟 Does a coin float or sink in water? (a) sinks (b) floats
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) a results table
37. 37.⚖️ 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
38. 38.🛟 Does a pebble float or sink in water? (a) sinks (b) 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 the one thing we change. (a) False (b) True
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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