Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 142 · 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? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
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 measure it (b) we keep it the same (c) we change it
3. 3.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
4. 4.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
5. 5.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) whether it floats (d) the amount of clay
7. 7.🔍 Which is the odd one out? (a) a cork (b) a glass marble (c) a ping-pong ball (d) a dry leaf
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
9. 9.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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) True (b) False
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
12. 12.True or false: an empty capped bottle sinks in water. (a) True (b) False
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
14. 14.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
15. 15.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) an ice-cream stick (d) a glass marble
16. 16.True or false: a pebble sinks in water. (a) False (b) True
17. 17.⚖️ 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) True (b) False
18. 18.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
19. 19.🛟 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
20. 20.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) an ice cube (d) a cork
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a mirror (d) a balloon
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) turmeric powder (d) a battery cell
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) turmeric powder (d) a tub of water
24. 24.True or false: a cork floats on water. (a) False (b) True
25. 25.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a steel spoon (d) an ice-cream stick
26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a mirror (d) small test objects
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.⚖️ 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
30. 30.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
31. 31.True or false: a feather sinks in water. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
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) whether it floats (b) the tub of water (c) the kind of clay (d) the shape of the clay
34. 34.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
36. 36.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) a steel spoon (b) an empty capped bottle (c) a cork (d) an ice cube
39. 39.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
40. 40.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True

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