Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 969 · 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.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) a towel for spills (d) small test objects
3. 3.⚖️ 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
4. 4.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
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 kind of clay (c) the tub of water (d) whether it floats
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
7. 7.⚖️ 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 keep it the same (b) we measure it (c) we change it
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
9. 9.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
10. 10.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🛟 Which of these floats on water? (a) a metal key (b) an empty capped bottle (c) a glass marble (d) a steel spoon
13. 13.🛟 Which of these floats on water? (a) a pebble (b) a ping-pong ball (c) a steel spoon (d) a glass marble
14. 14.⚖️ 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 kind of clay
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a tub of water (d) a battery cell
16. 16.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a glass marble (d) a dry leaf
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
18. 18.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
19. 19.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) small test objects (d) a mirror
22. 22.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a magnet (d) a battery cell
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a towel for spills (d) a results table
26. 26.⚖️ 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) True (b) False
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a towel for spills (d) a results table
28. 28.🛟 Which of these floats on water? (a) an ice-cream stick (b) a glass marble (c) a ball of clay (d) a coin
29. 29.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a mirror
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
33. 33.🛟 Does a cork float or sink in water? (a) sinks (b) floats
34. 34.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ping-pong ball (c) a cork (d) a ball of clay
35. 35.⚖️ 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
36. 36.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
37. 37.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
39. 39.⚖️ 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
40. 40.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True

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