Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 322 · 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.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a balloon (d) small test objects
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a towel for spills (d) small test objects
6. 6.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) more plain water (d) a little shaking
7. 7.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) a glass marble (d) a pebble
8. 8.True or false: a battery cell is not 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? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a results table (d) a battery cell
11. 11.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) a tub of water
13. 13.True or false: a cork sinks in water. (a) False (b) True
14. 14.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm
17. 17.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) a dry leaf (d) a steel spoon
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
20. 20.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
22. 22.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a pebble (d) an ice cube
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a tub of water (d) small test objects
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
26. 26.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
28. 28.🛟 Which of these floats on water? (a) a glass marble (b) a dry leaf (c) a metal key (d) a steel spoon
29. 29.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
30. 30.🛟 Does a feather float or sink in water? (a) floats (b) sinks
31. 31.⚖️ 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) False (b) True
32. 32.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
33. 33.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) yeast (d) a magnet
35. 35.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a ping-pong ball (d) an iron nail
36. 36.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
37. 37.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the kind of clay
39. 39.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a mirror (d) a balloon

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