Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 449 · 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? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
3. 3.🛟 Which of these sinks in water? (a) an iron nail (b) an ice cube (c) a cork (d) an empty capped bottle
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) small test objects (d) a results table
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) the amount of clay (d) whether it floats
9. 9.⚖️ 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 tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
10. 10.🧺 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) turmeric powder (d) a results table
11. 11.True or false: a coin sinks in water. (a) False (b) True
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it dissolves (d) it turns white
14. 14.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a pebble (d) an ice-cream stick
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
17. 17.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
18. 18.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
19. 19.True or false: a cork sinks in water. (a) True (b) False
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) yeast
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a battery cell (d) a mirror
22. 22.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
23. 23.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
25. 25.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) small test objects (d) a results table
27. 27.True or false: a steel spoon sinks in water. (a) False (b) True
28. 28.True or false: a feather 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: whether it floats is what we measure. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a battery cell (d) turmeric powder
31. 31.⚖️ 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 measure it (b) we keep it the same (c) we change it
32. 32.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an empty capped bottle (c) a cork (d) a glass marble
33. 33.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a steel spoon (d) an ice cube
34. 34.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) an ice-cream stick (d) a cork
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) small test objects (d) a towel for spills
37. 37.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
38. 38.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
39. 39.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) an ice-cream stick (d) a ping-pong ball
40. 40.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense

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