Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 556 · 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? True or false: the tub of water is kept the same. (a) False (b) True
2. 2.True or false: a ball of clay sinks in water. (a) False (b) True
3. 3.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a steel spoon (d) a cork
4. 4.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
5. 5.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
6. 6.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
7. 7.True or false: an ice-cream stick floats on water. (a) True (b) False
8. 8.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
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) False (b) True
13. 13.True or false: an empty capped bottle floats on water. (a) True (b) False
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) small test objects (d) a mirror
15. 15.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
17. 17.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a feather (d) a glass marble
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a mirror (d) a towel for spills
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
22. 22.True or false: a glass marble floats on water. (a) False (b) True
23. 23.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a magnet (d) small test objects
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a results table (d) a towel for spills
26. 26.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
27. 27.⚖️ 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) the amount of clay (c) whether it floats (d) the shape of the clay
28. 28.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) an ice cube (d) an iron nail
29. 29.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
30. 30.True or false: a ping-pong ball floats on water. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a ball of clay (d) a dry leaf
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a magnet (d) a results table
34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
35. 35.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a towel for spills (d) yeast
37. 37.🛟 Which of these sinks in water? (a) a pebble (b) a cork (c) a feather (d) a piece of thermocol
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) small test objects (d) a tub of water
40. 40.⚖️ 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 measure it (c) we keep it the same

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