Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 835 · 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.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
2. 2.True or false: a coin sinks in water. (a) True (b) False
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a mirror (d) a balloon
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a balloon
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a results table (d) a tub of water
6. 6.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
7. 7.⚖️ 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) whether it floats (c) the shape of the clay
8. 8.True or false: an ice-cream stick sinks in water. (a) False (b) True
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) turmeric powder (d) a results table
12. 12.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
13. 13.⚖️ 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 tub of water
14. 14.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
15. 15.⚖️ 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
16. 16.True or false: an iron nail floats on water. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a ball of clay (d) a steel spoon
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
19. 19.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: an empty capped bottle floats on water. (a) False (b) True
21. 21.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
22. 22.⚖️ 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
23. 23.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
24. 24.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a coin (d) a dry leaf
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
26. 26.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
27. 27.⚖️ 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
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 measure it (c) we change it
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 tub of water (b) the kind of clay (c) the amount of clay (d) whether it floats
30. 30.⚖️ 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
31. 31.True or false: a feather floats on water. (a) False (b) True
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
34. 34.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
35. 35.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) an empty capped bottle (c) a pebble (d) a glass marble
37. 37.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
38. 38.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a steel spoon (d) a piece of thermocol

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