Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 69 · 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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
2. 2.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) an empty capped bottle (d) a steel spoon
3. 3.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) yeast (d) a tub of water
5. 5.⚖️ 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
6. 6.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a steel spoon (d) a ping-pong ball
7. 7.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
8. 8.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
9. 9.⚖️ 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 amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
10. 10.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
11. 11.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
12. 12.True or false: a glass marble floats on water. (a) False (b) True
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the tub of water (d) the amount of clay
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) an iron nail (d) an ice cube
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
17. 17.⚖️ 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) True (b) False
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
19. 19.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
20. 20.True or false: a piece of thermocol sinks in water. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a steel spoon (d) an ice-cream stick
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) an ice cube (d) an ice-cream stick
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a balloon (d) turmeric powder
25. 25.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) an empty capped bottle (d) a coin
26. 26.⚖️ 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 keep it the same (b) we change it (c) we measure it
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a battery cell (d) a balloon
28. 28.⚖️ 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) True (b) False
29. 29.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
30. 30.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a metal key (d) a cork
31. 31.⚖️ 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
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
34. 34.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) turmeric powder (d) a results table
36. 36.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
37. 37.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
38. 38.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
39. 39.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
40. 40.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False

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