Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 681 · 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.True or false: a piece of thermocol floats on water. (a) False (b) True
2. 2.🛟 Does an ice-cream stick 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 tub of water is kept the same. (a) False (b) True
4. 4.True or false: an iron nail floats on water. (a) False (b) True
5. 5.True or false: a steel spoon floats on water. (a) True (b) False
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🛟 Which of these floats on water? (a) a piece of thermocol (b) a pebble (c) a glass marble (d) a ball of clay
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a towel for spills (d) a tub of water
12. 12.🛟 Does a cork float or sink in water? (a) floats (b) sinks
13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a towel for spills (d) yeast
15. 15.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
16. 16.True or false: an ice-cream stick floats on water. (a) False (b) True
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 tub of water (b) whether it floats (c) the shape of the clay
18. 18.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) a cork (d) a pebble
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) turmeric powder (d) a magnet
20. 20.True or false: a cork floats on water. (a) True (b) False
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) turmeric powder
22. 22.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a glass marble (c) an empty capped bottle (d) a piece of thermocol
23. 23.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a towel for spills (d) small test objects
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a tub of water (d) a results table
27. 27.🔍 Which is the odd one out? (a) a dry leaf (b) a metal key (c) a coin (d) a pebble
28. 28.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) a piece of thermocol (d) an ice cube
29. 29.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: a metal key floats on water. (a) False (b) True
31. 31.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) a dry leaf (d) an iron nail
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a battery cell (d) a towel for spills
34. 34.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
35. 35.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
36. 36.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
37. 37.⚖️ 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) whether it floats (c) the shape of the clay (d) the kind of clay
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
39. 39.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
40. 40.⚖️ 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

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