Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 970 · 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.🛟 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
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
4. 4.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
5. 5.True or false: a ball of clay sinks in water. (a) False (b) True
6. 6.⚖️ 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 shape of the clay (c) the tub of water
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a results table (d) small test objects
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a magnet (d) a results table
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a results table (d) small test objects
11. 11.True or false: an iron nail floats on water. (a) False (b) True
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the amount of clay (d) whether it floats
13. 13.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
14. 14.⚖️ 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) True (b) False
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
16. 16.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
17. 17.⚖️ 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
18. 18.True or false: an ice cube floats on water. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a steel spoon (d) a dry leaf
20. 20.⚖️ 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 shape of the clay (c) the amount of clay
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) a towel for spills (d) a results table
22. 22.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) an iron nail (d) a coin
23. 23.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
24. 24.⚖️ 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 change it (b) we measure it (c) we keep it the same
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🛟 Does a cork float or sink in water? (a) sinks (b) floats
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 keep it the same (b) we change it (c) we measure it
28. 28.🥚 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
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a battery cell
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) a towel for spills (d) small test objects
31. 31.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
32. 32.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Does a coin float or sink in water? (a) floats (b) sinks
34. 34.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) an ice cube (d) an iron nail
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
37. 37.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an iron nail (c) a ping-pong ball (d) a feather
38. 38.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
39. 39.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) an ice-cream stick (d) a ball of clay
40. 40.🔍 Which is the odd one out? (a) a piece of thermocol (b) a dry leaf (c) a metal key (d) a cork

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