Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 823 · 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.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) a cork (d) a pebble
3. 3.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
4. 4.🧺 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 magnet
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) small test objects (d) a tub of water
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
7. 7.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) small test objects (d) yeast
9. 9.⚖️ 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
10. 10.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
11. 11.⚖️ 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
12. 12.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) an empty capped bottle (d) a metal key
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
15. 15.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
16. 16.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a battery cell (d) a tub of water
19. 19.⚖️ 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 tub of water (c) the shape of the clay (d) the kind of clay
20. 20.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
22. 22.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
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) False (b) True
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a results table (d) a battery cell
29. 29.True or false: a glass marble floats on water. (a) True (b) False
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
31. 31.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
33. 33.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: an ice cube floats on water. (a) True (b) False
35. 35.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
36. 36.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) a towel for spills (d) small test objects
40. 40.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a pebble (d) an empty capped bottle

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