Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 679 · 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 should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
3. 3.🧺 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
4. 4.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ 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) True (b) False
6. 6.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) small test objects
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a dry leaf (d) a glass marble
10. 10.⚖️ 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
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
12. 12.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) an ice-cream stick (d) a pebble
13. 13.🛟 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
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) small test objects (d) a tub of water
15. 15.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a results table (d) a towel for spills
17. 17.🛟 Which of these sinks in water? (a) a feather (b) an ice cube (c) an empty capped bottle (d) a steel spoon
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
19. 19.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
20. 20.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
21. 21.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a piece of thermocol (d) a glass marble
22. 22.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) a glass marble (d) a coin
23. 23.True or false: a steel spoon sinks in water. (a) False (b) True
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
25. 25.True or false: a ping-pong ball floats on water. (a) False (b) True
26. 26.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a steel spoon (d) a feather
28. 28.True or false: a glass marble sinks in water. (a) False (b) True
29. 29.⚖️ 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) False (b) True
30. 30.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a magnet (d) yeast
32. 32.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an ice cube (d) a ball of clay
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) small test objects (d) a balloon
34. 34.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a cork (d) a piece of thermocol
36. 36.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
37. 37.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
38. 38.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
39. 39.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
40. 40.True or false: a feather sinks in water. (a) True (b) False

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