Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 82 · 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: an ice-cream stick floats on water. (a) True (b) False
2. 2.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a mirror (d) a towel for spills
4. 4.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
5. 5.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) small test objects (d) a tub of water
7. 7.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
9. 9.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) a pebble (d) a steel spoon
11. 11.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) an ice cube (d) a coin
12. 12.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
13. 13.True or false: a piece of thermocol sinks in water. (a) False (b) True
14. 14.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a cork (d) a pebble
16. 16.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a dry leaf (d) a metal key
17. 17.🔮 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
18. 18.⚖️ 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) whether it floats (c) the shape of the clay (d) the amount of clay
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) a coin (d) a piece of thermocol
22. 22.⚖️ 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) False (b) True
23. 23.🛟 Which of these sinks in water? (a) a dry leaf (b) a pebble (c) an ice-cream stick (d) a cork
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a results table
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a results table (d) turmeric powder
27. 27.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
28. 28.⚖️ 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) True (b) False
29. 29.⚖️ 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
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a tub of water (d) yeast
33. 33.⚖️ 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 tub of water (c) the shape of the clay
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
35. 35.True or false: a coin sinks in water. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ball of clay (c) a glass marble (d) a steel spoon
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a steel spoon (d) a piece of thermocol
38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
39. 39.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue

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