Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 737 · 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 “the tub of water”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
4. 4.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a glass marble (d) a dry leaf
5. 5.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
6. 6.⚖️ 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 kind of clay (b) the shape of the clay (c) the tub of water (d) the amount of clay
7. 7.True or false: an iron nail sinks in water. (a) False (b) True
8. 8.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a mirror (d) a battery cell
10. 10.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a dry leaf (d) a coin
14. 14.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of thermocol (c) a glass marble (d) an iron nail
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
16. 16.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) an ice cube (d) a ball of clay
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) turmeric powder (d) a towel for spills
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
20. 20.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
21. 21.True or false: a pebble floats on water. (a) False (b) True
22. 22.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
23. 23.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a feather (c) a pebble (d) an ice-cream stick
24. 24.🔍 Which is the odd one out? (a) a ping-pong ball (b) a piece of thermocol (c) a dry leaf (d) a steel spoon
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) a piece of thermocol (d) a pebble
27. 27.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a coin (d) an empty capped bottle
32. 32.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) a feather (d) an empty capped bottle
34. 34.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
35. 35.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) whether it floats (d) the shape of the clay
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a results table (d) a towel for spills
38. 38.True or false: a coin floats on water. (a) False (b) True
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a glass marble (d) a coin

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