Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 356 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
2. 2.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
4. 4.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a metal key (d) a feather
5. 5.🧺 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 balloon (d) a results table
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
7. 7.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a battery cell (d) a mirror
9. 9.⚖️ 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
10. 10.🛟 Which of these floats on water? (a) a ping-pong ball (b) a steel spoon (c) a pebble (d) a coin
11. 11.⚖️ 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
12. 12.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a magnet (d) a towel for spills
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a tub of water (d) a results table
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a tub of water
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
17. 17.🛟 Which of these floats on water? (a) a ball of clay (b) a dry leaf (c) a metal key (d) a steel spoon
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) yeast
19. 19.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
20. 20.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) a glass marble (d) an ice cube
21. 21.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
22. 22.True or false: a steel spoon floats on water. (a) False (b) True
23. 23.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) a feather (d) a pebble
26. 26.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
29. 29.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
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 measure it (b) we change it (c) we keep it the same
31. 31.🧺 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 results table
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a cork (d) a coin
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
35. 35.🛟 Does a feather float or sink in water? (a) sinks (b) floats
36. 36.True or false: a pebble sinks in water. (a) True (b) False
37. 37.🚢 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
38. 38.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a steel spoon (d) a piece of thermocol
40. 40.🧺 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 towel for spills (d) yeast

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