Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 157 · 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 is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a magnet (d) a results table
2. 2.⚖️ 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) True (b) False
3. 3.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
4. 4.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a towel for spills (d) a mirror
6. 6.🔮 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
7. 7.True or false: a steel spoon floats on water. (a) False (b) True
8. 8.🛟 Which of these floats on water? (a) an ice-cream stick (b) a metal key (c) a pebble (d) an iron nail
9. 9.⚖️ 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
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.True or false: a glass marble floats on water. (a) True (b) False
12. 12.True or false: a pebble sinks in water. (a) True (b) False
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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
15. 15.🧊 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
16. 16.True or false: a cork sinks in water. (a) False (b) True
17. 17.True or false: a steel spoon sinks in water. (a) True (b) False
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a tub of water (d) small test objects
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the amount of clay (d) whether it floats
20. 20.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) a piece of thermocol (d) an ice-cream stick
21. 21.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
22. 22.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) an empty capped bottle (d) a ball of clay
23. 23.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
24. 24.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a ping-pong ball (d) a coin
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a mirror (d) a results table
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
29. 29.🛟 Does a cork float or sink in water? (a) sinks (b) floats
30. 30.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ 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 amount of clay
32. 32.🔍 Which is the odd one out? (a) an iron nail (b) a ping-pong ball (c) a steel spoon (d) a coin
33. 33.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a battery cell (d) a magnet
35. 35.True or false: an iron nail floats on water. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the kind of clay (d) the amount 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 the one thing we change. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a cork (d) a ball of clay
39. 39.⚖️ 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 keep it the same (c) we change it
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub

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