Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 112 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a results table (d) small test objects
3. 3.⚖️ 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 change it (b) we measure it (c) we keep it the same
4. 4.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) an ice cube (d) a pebble
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
7. 7.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) an empty capped bottle (d) an ice cube
8. 8.True or false: a feather floats on water. (a) True (b) False
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a battery cell (d) turmeric powder
12. 12.⚖️ 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
13. 13.True or false: an iron nail sinks in water. (a) True (b) False
14. 14.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
17. 17.⚖️ 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) whether it floats (c) the amount of clay
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a feather (d) a piece of thermocol
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of thermocol (c) a cork (d) an ice cube
23. 23.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
24. 24.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) small test objects
26. 26.🛟 Which of these floats on water? (a) an empty capped bottle (b) a steel spoon (c) a coin (d) a pebble
27. 27.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
28. 28.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
29. 29.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) an ice cube (d) a piece of thermocol
30. 30.⚖️ 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
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
32. 32.🔮 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
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
34. 34.True or false: a piece of thermocol floats on water. (a) True (b) False
35. 35.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) a steel spoon (d) a ball of clay
36. 36.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
37. 37.True or false: an ice-cream stick sinks in water. (a) True (b) False
38. 38.🧺 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) a balloon (d) a results table
39. 39.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
40. 40.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a cork (d) a ball of clay

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