Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 8 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) turmeric powder (d) a magnet
3. 3.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
4. 4.⚖️ 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) whether it floats (c) the amount of clay
5. 5.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a ping-pong ball (d) a ball of clay
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a metal key (d) a cork
8. 8.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
12. 12.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
14. 14.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
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 kept the same. (a) True (b) False
16. 16.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
17. 17.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
18. 18.True or false: a glass marble sinks in water. (a) False (b) True
19. 19.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a ping-pong ball (d) a metal key
20. 20.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.⚖️ 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 shape of the clay (c) the tub of water (d) the amount of clay
23. 23.⚖️ 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) False (b) True
24. 24.True or false: a piece of thermocol floats on water. (a) False (b) True
25. 25.🛟 Which of these floats on water? (a) an iron nail (b) an empty capped bottle (c) a ball of clay (d) a glass marble
26. 26.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
27. 27.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a metal key (d) a cork
29. 29.🥚 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
30. 30.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
31. 31.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a pebble (d) a metal key
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
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) the amount of clay (b) whether it floats (c) the tub of water (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 kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay
35. 35.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
36. 36.🧺 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 results table (d) a balloon
37. 37.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a balloon (d) a results table
39. 39.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
40. 40.🧺 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 tub of water (d) a results table

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