Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 26 · 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 towel for spills (b) a tub of water (c) a mirror (d) small test objects
2. 2.🛟 Which of these floats on water? (a) an ice cube (b) a ball of clay (c) a pebble (d) an iron nail
3. 3.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
4. 4.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
5. 5.⚖️ 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 measure it (b) we change it (c) we keep it the same
6. 6.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.⚖️ 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 amount of clay (d) the kind of clay
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) a ping-pong ball (d) an ice-cream stick
11. 11.True or false: an empty capped bottle floats on water. (a) False (b) True
12. 12.⚖️ 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 tub of water (c) the shape of the clay (d) the kind of clay
13. 13.True or false: a dry leaf floats on water. (a) False (b) True
14. 14.🛟 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 keep children safe (d) to splash everyone
15. 15.⚖️ 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) True (b) False
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
19. 19.True or false: an ice cube sinks in water. (a) True (b) False
20. 20.True or false: a glass marble floats on water. (a) True (b) False
21. 21.🧺 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) a mirror (d) a tub of water
22. 22.🧺 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 towel for spills (d) a magnet
23. 23.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a cork (d) an iron nail
24. 24.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a glass marble (d) a metal key
25. 25.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
26. 26.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) a steel spoon (d) a glass marble
29. 29.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) a coin (d) a ping-pong ball
30. 30.🔍 Which is the odd one out? (a) a feather (b) a pebble (c) a piece of thermocol (d) a dry leaf
31. 31.🧺 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) a balloon (d) a tub of water
32. 32.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
33. 33.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
34. 34.⚖️ 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
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
37. 37.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
38. 38.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an iron nail (c) a ping-pong ball (d) a cork
39. 39.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) small test objects (d) yeast

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