Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 590 · 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 “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) a results table (d) a tub of water
7. 7.True or false: an ice-cream stick floats on water. (a) True (b) False
8. 8.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
10. 10.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
11. 11.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
13. 13.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
14. 14.🧺 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
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) turmeric powder (d) small test objects
16. 16.True or false: a pebble sinks in water. (a) False (b) True
17. 17.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
18. 18.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
19. 19.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
21. 21.True or false: a pebble floats on water. (a) True (b) False
22. 22.⚖️ 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 kind of clay (c) the shape of the clay
23. 23.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
24. 24.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
25. 25.True or false: a dry leaf floats on water. (a) True (b) False
26. 26.⚖️ 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) whether it floats (c) the shape of the clay (d) the amount of clay
27. 27.🛟 Which of these floats on water? (a) a coin (b) a cork (c) a metal key (d) a steel spoon
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
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 change it (c) we measure it
31. 31.🚢 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
32. 32.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a cork (d) a glass marble
33. 33.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
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.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
36. 36.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
37. 37.True or false: an ice cube sinks in water. (a) True (b) False
38. 38.⚖️ 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) False (b) True
39. 39.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a glass marble (d) a pebble
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a battery cell (d) a results table

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