Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 345 · 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.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
3. 3.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) a ping-pong ball (d) a cork
4. 4.True or false: a dry leaf floats on water. (a) False (b) True
5. 5.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a ball of clay (d) a feather
6. 6.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
7. 7.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
8. 8.⚖️ 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 shape of the clay (c) the kind of clay
9. 9.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
11. 11.🛟 Which of these sinks in water? (a) a coin (b) an ice cube (c) a piece of thermocol (d) an empty capped bottle
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a metal key (d) a pebble
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a towel for spills (d) a tub of water
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a coin (d) a metal key
16. 16.⚖️ 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
17. 17.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a magnet (d) a battery cell
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a magnet (d) small test objects
21. 21.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) an iron nail (d) a ball of clay
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
23. 23.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
24. 24.🛟 Which of these floats on water? (a) an empty capped bottle (b) a pebble (c) a glass marble (d) a steel spoon
25. 25.⚖️ 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 amount of clay (c) the shape of the clay (d) the tub of water
26. 26.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
27. 27.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) the small pebble (d) both of them
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
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 change it (b) we keep it the same (c) we measure it
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
33. 33.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
36. 36.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a pebble (d) a steel spoon
37. 37.🛟 Which of these sinks in water? (a) a ball of clay (b) an empty capped bottle (c) a ping-pong ball (d) an ice cube
38. 38.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) an iron nail (d) an ice-cream stick
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects

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