Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 330 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
3. 3.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
4. 4.⚖️ 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 tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
5. 5.🧺 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) a tub of water
6. 6.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
9. 9.⚖️ 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 measure it (b) we keep it the same (c) we change it
10. 10.🔍 Which is the odd one out? (a) a steel spoon (b) a feather (c) a ball of clay (d) a glass marble
11. 11.True or false: an ice-cream stick sinks in water. (a) True (b) False
12. 12.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a magnet (d) small test objects
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a results table (d) a magnet
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
16. 16.True or false: a feather floats on water. (a) False (b) True
17. 17.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
18. 18.🧺 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 balloon
19. 19.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
20. 20.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
21. 21.🛟 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
22. 22.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
23. 23.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
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 measure it (b) we keep it the same (c) we change it
26. 26.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a coin (d) a dry leaf
27. 27.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a mirror (d) small test objects
29. 29.True or false: a metal key floats on water. (a) False (b) True
30. 30.True or false: an ice cube floats on water. (a) False (b) True
31. 31.⚖️ 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) the tub of water (c) whether it floats
32. 32.True or false: an empty capped bottle sinks in water. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) an ice cube (d) a coin
34. 34.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
35. 35.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
36. 36.🔮 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
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) turmeric powder (d) a battery cell
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) turmeric powder (d) a tub of water

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