Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 961 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a towel for spills (d) small test objects
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) small test objects
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) an empty capped bottle (c) a coin (d) a pebble
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
8. 8.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
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) the amount of clay (b) the kind of clay (c) the tub of water (d) the shape of the clay
10. 10.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) an ice-cream stick (d) a coin
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
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 tub of water (b) the amount of clay (c) the kind of clay (d) whether it floats
13. 13.🔍 Which is the odd one out? (a) a pebble (b) a dry leaf (c) a steel spoon (d) a glass marble
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) yeast (d) a balloon
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.True or false: a pebble floats on water. (a) True (b) False
17. 17.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) a cork (d) a piece of thermocol
19. 19.⚖️ 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
20. 20.🛟 Does an ice cube 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 “the shape of the clay”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
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.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
27. 27.True or false: an empty capped bottle sinks in water. (a) True (b) False
28. 28.True or false: a ping-pong ball sinks in water. (a) True (b) False
29. 29.True or false: a piece of thermocol floats on water. (a) False (b) True
30. 30.True or false: a dry leaf floats on water. (a) True (b) False
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a battery cell
33. 33.🔍 Which is the odd one out? (a) a dry leaf (b) a cork (c) a ping-pong ball (d) a steel spoon
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) a tub of water
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
37. 37.🛟 Which of these sinks in water? (a) an ice cube (b) a pebble (c) a feather (d) a piece of thermocol
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
39. 39.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a mirror

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