Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 136 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
2. 2.True or false: an iron nail sinks in water. (a) True (b) False
3. 3.⚖️ 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) the kind of clay (c) whether it floats
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a battery cell
6. 6.⚖️ 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
7. 7.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
9. 9.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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
11. 11.True or false: a dry leaf sinks in water. (a) True (b) False
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
13. 13.True or false: an empty capped bottle sinks in water. (a) True (b) False
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
15. 15.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a steel spoon (c) a dry leaf (d) a cork
16. 16.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
17. 17.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
20. 20.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a piece of thermocol (d) a pebble
21. 21.🧺 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) small test objects (d) a balloon
22. 22.⚖️ 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) True (b) False
23. 23.⚖️ 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
24. 24.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) a ball of clay (d) an iron nail
27. 27.⚖️ 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
28. 28.🛟 Which of these sinks in water? (a) a feather (b) a ball of clay (c) an ice-cream stick (d) a piece of thermocol
29. 29.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
30. 30.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: a coin sinks in water. (a) True (b) False
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a ball of clay (d) an empty capped bottle
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) a ping-pong ball (d) an iron nail
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
37. 37.🛟 Does a feather float or sink in water? (a) sinks (b) floats
38. 38.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
39. 39.⚖️ 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 amount of clay
40. 40.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True

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