Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 713 · 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 amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
3. 3.🛟 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
4. 4.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ 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
6. 6.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) small test objects
12. 12.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
13. 13.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a cork (d) a steel spoon
14. 14.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
15. 15.True or false: a steel spoon sinks in water. (a) False (b) True
16. 16.True or false: an ice cube sinks in water. (a) False (b) True
17. 17.🛟 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
18. 18.True or false: a ball of clay sinks in water. (a) False (b) True
19. 19.🛟 Does a feather float or sink in water? (a) sinks (b) floats
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
21. 21.⚖️ 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
22. 22.⚖️ 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) the tub of water (d) whether it floats
23. 23.True or false: a glass marble sinks in water. (a) False (b) True
24. 24.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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 kind of clay (c) the shape of the clay
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
28. 28.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a coin (d) an ice-cream stick
29. 29.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
30. 30.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a ball of clay (d) a feather
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a mirror (d) a magnet
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) a tub of water (d) a towel for spills
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
34. 34.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
37. 37.⚖️ 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 shape of the clay (c) the kind of clay (d) the tub of water
38. 38.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
39. 39.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm

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