Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 61 · 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) the shape of the clay (b) the amount of clay (c) whether it floats
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) a tub of water
4. 4.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a coin (d) a ball of clay
5. 5.🛟 Does a cork float or sink in water? (a) floats (b) sinks
6. 6.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a pebble (d) a ping-pong ball
7. 7.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
9. 9.True or false: a dry leaf sinks in water. (a) False (b) True
10. 10.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
11. 11.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a piece of thermocol (d) a metal key
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
13. 13.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
14. 14.True or false: a piece of thermocol floats on water. (a) False (b) True
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) turmeric powder (d) a battery cell
16. 16.⚖️ 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 change it (b) we keep it the same (c) we measure it
17. 17.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
18. 18.⚖️ 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
19. 19.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
20. 20.⚖️ 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 kind of clay (d) the shape of the clay
21. 21.True or false: a glass marble floats on water. (a) False (b) True
22. 22.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
23. 23.🚢 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
24. 24.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
25. 25.🛟 Which of these sinks in water? (a) a cork (b) a ping-pong ball (c) a steel spoon (d) an ice cube
26. 26.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
27. 27.🛟 Which of these floats on water? (a) an ice-cream stick (b) a ball of clay (c) a metal key (d) a glass marble
28. 28.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
29. 29.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
30. 30.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
31. 31.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a balloon
34. 34.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
35. 35.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a dry leaf (d) a coin
37. 37.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
38. 38.True or false: a glass marble sinks in water. (a) False (b) True
39. 39.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed

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