Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 9 · 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.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
3. 3.⚖️ 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
4. 4.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
5. 5.True or false: a feather sinks in water. (a) False (b) True
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
9. 9.True or false: a metal key floats on water. (a) False (b) True
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a mirror (d) small test objects
11. 11.⚖️ 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
12. 12.True or false: a dry leaf sinks in water. (a) False (b) True
13. 13.True or false: a pebble sinks in water. (a) True (b) False
14. 14.True or false: an iron nail sinks in water. (a) False (b) True
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
17. 17.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) small test objects (d) a towel for spills
19. 19.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
20. 20.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
21. 21.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an iron nail (d) a piece of thermocol
22. 22.🔍 Which is the odd one out? (a) a ping-pong ball (b) a metal key (c) an ice cube (d) an empty capped bottle
23. 23.🛟 Which of these sinks in water? (a) a feather (b) a glass marble (c) a dry leaf (d) a ping-pong ball
24. 24.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) an ice-cream stick (d) a steel spoon
25. 25.True or false: an ice cube floats on water. (a) True (b) False
26. 26.🥚 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
27. 27.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
28. 28.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a glass marble (d) a ping-pong ball
29. 29.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
31. 31.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ 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) False (b) True
33. 33.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) a steel spoon (d) a cork
34. 34.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a feather (d) a coin
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) turmeric powder (d) small test objects
38. 38.⚖️ 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 kind of clay
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a magnet
40. 40.🛟 Does a feather float or sink in water? (a) sinks (b) floats

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