Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 213 · 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.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Does a coin float or sink in water? (a) floats (b) sinks
3. 3.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float
4. 4.🧺 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) yeast (d) a tub of water
5. 5.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
6. 6.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
7. 7.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) an ice-cream stick (d) a cork
8. 8.⚖️ 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
9. 9.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) the small pebble (d) both of them
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a towel for spills (d) small test objects
13. 13.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) an iron nail (d) a coin
14. 14.⚖️ 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 amount of clay (b) the shape of the clay (c) whether it floats (d) the kind of clay
15. 15.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a coin (d) a steel spoon
16. 16.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
17. 17.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a coin (b) a feather (c) an iron nail (d) a steel spoon
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
23. 23.🔮 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
24. 24.🛟 Which of these sinks in water? (a) a feather (b) a metal key (c) an ice-cream stick (d) a piece of thermocol
25. 25.True or false: a ball of clay floats on water. (a) False (b) True
26. 26.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a tub of water (d) turmeric powder
28. 28.⚖️ 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
29. 29.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a tub of water (d) small test objects
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a balloon (d) a results table
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
35. 35.True or false: a dry leaf floats on water. (a) False (b) True
36. 36.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
37. 37.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) an ice-cream stick (d) an iron nail
38. 38.🧺 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 balloon (d) a tub of water
39. 39.⚖️ 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
40. 40.🛟 Which of these floats on water? (a) a dry leaf (b) a ball of clay (c) a steel spoon (d) a coin

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