Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 743 · 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) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a feather (d) a dry leaf
3. 3.True or false: a ball of clay floats on water. (a) True (b) False
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a magnet (d) yeast
5. 5.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
6. 6.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a glass marble (d) a feather
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
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 mirror (d) small test objects
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
10. 10.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
11. 11.🛟 Does a feather float or sink in water? (a) sinks (b) floats
12. 12.🛟 Which of these sinks in water? (a) a cork (b) a glass marble (c) an empty capped bottle (d) an ice-cream stick
13. 13.⚖️ 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
14. 14.🛟 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
15. 15.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
16. 16.🛟 Which of these sinks in water? (a) a coin (b) a cork (c) a ping-pong ball (d) an ice cube
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a battery cell (d) a balloon
18. 18.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a glass marble (d) an ice-cream stick
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a pebble (d) an ice cube
20. 20.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) a ping-pong ball (b) a steel spoon (c) a metal key (d) a coin
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the amount of clay (c) whether it floats
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
24. 24.🛟 Which of these sinks in water? (a) an ice cube (b) a steel spoon (c) an ice-cream stick (d) a feather
25. 25.⚖️ 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
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
27. 27.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
28. 28.🛟 Which of these sinks in water? (a) a metal key (b) a ping-pong ball (c) a feather (d) an ice cube
29. 29.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: an ice cube sinks in water. (a) False (b) True
31. 31.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) an ice-cream stick (d) a steel spoon
32. 32.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
33. 33.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a steel spoon (d) a piece of thermocol
34. 34.⚖️ 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 measure it (c) we change it
35. 35.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a glass marble (d) a ball of clay
36. 36.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: an ice-cream stick sinks in water. (a) True (b) False
38. 38.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a balloon (d) a towel for spills
40. 40.🛟 Which of these floats on water? (a) a cork (b) a steel spoon (c) a glass marble (d) a ball of clay

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