Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 209 · 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.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
2. 2.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) a ping-pong ball (d) a ball of clay
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a mirror (d) a tub of water
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a battery cell (d) a tub of water
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
6. 6.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
7. 7.True or false: a metal key floats on water. (a) True (b) False
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) yeast (d) small test objects
9. 9.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) an empty capped bottle (d) a metal key
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a towel for spills (d) small test objects
12. 12.True or false: a pebble floats on water. (a) True (b) False
13. 13.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) an iron nail (d) an ice-cream stick
14. 14.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) a results table
16. 16.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) a glass marble (d) a feather
17. 17.🛟 Does a cork float or sink in water? (a) sinks (b) floats
18. 18.True or false: a steel spoon sinks in water. (a) True (b) False
19. 19.True or false: a feather sinks in water. (a) True (b) False
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
21. 21.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
26. 26.⚖️ 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) the kind of clay (c) whether it floats
27. 27.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
28. 28.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ 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 kind of clay (d) the shape of the clay
30. 30.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a towel for spills (d) a tub of water
33. 33.⚖️ 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) False (b) True
34. 34.True or false: a cork sinks in water. (a) True (b) False
35. 35.🛟 Does a feather float or sink in water? (a) floats (b) sinks
36. 36.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a coin (d) a piece of thermocol
37. 37.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
38. 38.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a ball of clay (d) a cork
39. 39.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
40. 40.🧺 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 tub of water (d) a towel for spills

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