Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 694 · 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? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a balloon (d) a mirror
4. 4.⚖️ 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) True (b) False
5. 5.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a feather (d) a pebble
6. 6.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
7. 7.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a pebble (d) a cork
8. 8.⚖️ 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
9. 9.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
10. 10.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
11. 11.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) an empty capped bottle (d) a pebble
12. 12.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
13. 13.⚖️ 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
14. 14.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a steel spoon (d) a feather
16. 16.🥚 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
17. 17.🛟 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
18. 18.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a battery cell (d) a results table
20. 20.🔍 Which is the odd one out? (a) an iron nail (b) a ping-pong ball (c) an ice-cream stick (d) an empty capped bottle
21. 21.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a ball of clay (d) a ping-pong ball
22. 22.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
24. 24.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
28. 28.True or false: a cork sinks in water. (a) False (b) True
29. 29.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Which of these floats on water? (a) a pebble (b) a glass marble (c) an ice-cream stick (d) a coin
33. 33.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
34. 34.🔍 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
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.🔍 Which is the odd one out? (a) a cork (b) a glass marble (c) a dry leaf (d) an empty capped bottle
37. 37.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an iron nail (d) a cork
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a towel for spills
39. 39.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
40. 40.True or false: a glass marble sinks in water. (a) True (b) False

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