Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 872 · 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.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
3. 3.⚖️ 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 change it (b) we measure it (c) we keep it the same
4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
6. 6.⚖️ 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
7. 7.🧺 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 tub of water (d) a results table
8. 8.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a battery cell
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 amount of clay (c) the shape of the clay
11. 11.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) a dry leaf (d) a piece of thermocol
12. 12.True or false: a metal key floats on water. (a) True (b) False
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) yeast (d) a results table
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) a piece of thermocol (c) a ping-pong ball (d) a cork
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a tub of water (d) turmeric powder
17. 17.🔍 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
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
19. 19.🛟 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
20. 20.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a piece of thermocol (d) a feather
21. 21.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
25. 25.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
27. 27.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an empty capped bottle (d) a coin
28. 28.⚖️ 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
29. 29.True or false: an ice-cream stick sinks in water. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a dry leaf (c) a coin (d) a metal key
31. 31.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a pebble (d) a ping-pong ball
32. 32.⚖️ 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
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
35. 35.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
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 keep it the same (b) we measure it (c) we change it
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
38. 38.🛟 Does a coin float or sink in water? (a) sinks (b) floats
39. 39.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) turmeric powder

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