Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 776 · 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 can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
2. 2.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) a ball of clay (d) an empty capped bottle
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) yeast (d) a results table
6. 6.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
7. 7.🛟 Which of these floats on water? (a) a cork (b) a coin (c) a metal key (d) a glass marble
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
9. 9.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) an empty capped bottle (d) a coin
10. 10.⚖️ 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) whether it floats (c) the shape of the clay (d) the tub of water
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) small test objects
12. 12.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a metal key (c) a cork (d) an empty capped bottle
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
15. 15.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
16. 16.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
17. 17.🛟 Which of these floats on water? (a) a ping-pong ball (b) a ball of clay (c) a glass marble (d) a steel spoon
18. 18.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) lots of salt stirred in (d) a few ice cubes
19. 19.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
22. 22.⚖️ 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
23. 23.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
24. 24.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a battery cell (d) a towel for spills
26. 26.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) an ice-cream stick (d) a steel spoon
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
28. 28.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
29. 29.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
30. 30.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
31. 31.⚖️ 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
32. 32.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
33. 33.True or false: an empty capped bottle sinks in water. (a) False (b) True
34. 34.⚖️ 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) False (b) True
35. 35.🔍 Which is the odd one out? (a) a dry leaf (b) a coin (c) an iron nail (d) a ball of clay
36. 36.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
37. 37.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
38. 38.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
39. 39.⚖️ 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
40. 40.⚖️ 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

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