Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 572 · 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? Which of these is the one thing we change? (a) the amount of clay (b) the tub of water (c) the shape of the clay (d) the kind of clay
2. 2.🛟 Which of these floats on water? (a) a dry leaf (b) a metal key (c) an iron nail (d) a steel spoon
3. 3.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a glass marble (d) a feather
4. 4.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) yeast (d) a balloon
6. 6.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
7. 7.⚖️ 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
8. 8.True or false: an empty capped bottle sinks in water. (a) True (b) False
9. 9.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
10. 10.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) a dry leaf (d) an ice cube
11. 11.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
13. 13.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a tub of water (d) a towel for spills
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a mirror
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
18. 18.True or false: a pebble floats on water. (a) True (b) False
19. 19.🛟 Which of these sinks in water? (a) a pebble (b) a piece of thermocol (c) a feather (d) an empty capped bottle
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
22. 22.⚖️ 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) False (b) True
23. 23.True or false: an ice-cream stick sinks in water. (a) False (b) True
24. 24.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
25. 25.⚖️ 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 tub of water (c) the shape of the clay
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a balloon (d) a results table
28. 28.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
29. 29.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
30. 30.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
31. 31.⚖️ 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
32. 32.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
33. 33.True or false: an iron nail floats on water. (a) False (b) True
34. 34.⚖️ 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 change it (b) we keep it the same (c) we measure it
35. 35.⚖️ 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
36. 36.True or false: a cork sinks in water. (a) True (b) False
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a tub of water (d) a results table
38. 38.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a piece of thermocol (d) a metal key
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
40. 40.🔍 Which is the odd one out? (a) an empty capped bottle (b) a glass marble (c) a feather (d) an ice cube

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