Floating and Sinking Experiment Worksheet

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

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