Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 380 · 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? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
2. 2.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a glass marble (d) a metal key
3. 3.⚖️ 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
4. 4.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
5. 5.True or false: a cork floats on water. (a) False (b) True
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (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 change it (b) we measure it (c) we keep it the same
8. 8.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
9. 9.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
10. 10.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
11. 11.⚖️ 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
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
13. 13.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
14. 14.🛟 Which of these sinks in water? (a) a dry leaf (b) a ping-pong ball (c) a ball of clay (d) an ice cube
15. 15.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects
17. 17.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a feather (d) a coin
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a dry leaf (d) a pebble
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
21. 21.🛟 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
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
23. 23.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a pebble (d) an empty capped bottle
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a balloon (d) a battery cell
25. 25.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: an iron nail floats on water. (a) False (b) True
28. 28.⚖️ 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 amount of clay (c) whether it floats (d) the kind of clay
29. 29.True or false: a piece of thermocol sinks in water. (a) False (b) True
30. 30.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
31. 31.🛟 Does a feather float or sink in water? (a) floats (b) sinks
32. 32.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) an ice-cream stick (d) a glass marble
35. 35.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a glass marble (d) a ball of clay
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a piece of thermocol (d) a pebble
38. 38.True or false: a feather floats on water. (a) False (b) True
39. 39.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a coin (d) a glass marble

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