Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 885 · 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.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
2. 2.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
3. 3.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
4. 4.⚖️ 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
5. 5.⚖️ 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 shape of the clay (c) the tub of water
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
7. 7.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
8. 8.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
9. 9.🧺 Do we need small test objects 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) True (b) False
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) small test objects (d) a towel for spills
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
13. 13.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
15. 15.True or false: a cork floats on water. (a) True (b) False
16. 16.⚖️ 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 shape of the clay (b) the tub of water (c) the amount of clay (d) whether it floats
17. 17.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
18. 18.⚖️ 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 change it (c) we measure it
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.True or false: an empty capped bottle floats on water. (a) True (b) False
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
23. 23.True or false: a battery cell 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? True or false: the kind of clay is the one thing we change. (a) False (b) True
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a mirror (d) a tub of water
26. 26.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a results table (c) a towel for spills (d) a tub of water
28. 28.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a glass marble (c) a cork (d) a feather
29. 29.🧺 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) small test objects (d) a magnet
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a results table
32. 32.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
33. 33.True or false: an ice-cream stick floats on water. (a) False (b) True
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) small test objects
35. 35.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: an ice cube sinks in water. (a) True (b) False
37. 37.⚖️ 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 keep it the same (b) we measure it (c) we change it
38. 38.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) an ice cube (d) a feather
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
40. 40.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a steel spoon (d) a feather

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