Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 394 · 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 of these floats on water? (a) a pebble (b) a ball of clay (c) an ice-cream stick (d) a coin
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
4. 4.⚖️ 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
5. 5.⚖️ 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 change it (b) we keep it the same (c) we measure it
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
7. 7.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
8. 8.🛟 Which of these sinks in water? (a) a glass marble (b) an ice cube (c) a feather (d) an ice-cream stick
9. 9.🔮 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
10. 10.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a steel spoon (d) an ice cube
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
13. 13.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
14. 14.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
15. 15.True or false: a cork sinks in water. (a) True (b) False
16. 16.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
17. 17.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a mirror (d) a balloon
19. 19.⚖️ 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
20. 20.True or false: a dry leaf sinks in water. (a) True (b) False
21. 21.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
22. 22.⚖️ 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
23. 23.🛟 Does a coin float or sink in water? (a) sinks (b) floats
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) yeast (d) a tub of water
25. 25.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
27. 27.⚖️ 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
28. 28.⚖️ 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 tub of water
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) turmeric powder (d) a tub of water
30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a tub of water (d) small test objects
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) yeast
34. 34.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a mirror
36. 36.🛟 Which of these floats on water? (a) a feather (b) a metal key (c) a steel spoon (d) a ball of clay
37. 37.⚖️ 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
38. 38.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the cork itself (d) the tub
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) a magnet
40. 40.True or false: a results table is needed for the float-or-sink test. (a) True (b) False

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