Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 849 · 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 not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a results table (d) small test objects
2. 2.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a coin (d) an empty capped bottle
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
4. 4.True or false: a dry leaf floats on water. (a) False (b) True
5. 5.⚖️ 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) the tub of water (c) the amount of clay (d) whether it floats
6. 6.🛟 Which of these sinks in water? (a) a dry leaf (b) a glass marble (c) a ping-pong ball (d) an empty capped bottle
7. 7.True or false: an ice-cream stick floats on water. (a) True (b) False
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.🛟 Which of these floats on water? (a) a coin (b) a cork (c) a pebble (d) a glass marble
10. 10.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
11. 11.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) yeast
13. 13.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
14. 14.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
16. 16.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the cork itself (d) the tub
17. 17.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
18. 18.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a piece of thermocol (d) a ball of clay
19. 19.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: an empty capped bottle floats on water. (a) False (b) True
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.True or false: a ping-pong ball sinks in water. (a) False (b) True
23. 23.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
24. 24.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
26. 26.True or false: a ball of clay sinks in water. (a) False (b) True
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
29. 29.🛟 Does a cork float or sink in water? (a) floats (b) sinks
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
31. 31.⚖️ 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 kind of clay (d) whether it floats
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a magnet (d) turmeric powder
33. 33.True or false: a metal key sinks in water. (a) False (b) True
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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 change it (b) we keep it the same (c) we measure it
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a battery cell
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a tub of water (d) a towel for spills

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