Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 506 · 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.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
2. 2.⚖️ 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
3. 3.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a mirror (d) a balloon
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
8. 8.🧺 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 towel for spills (d) turmeric powder
9. 9.🧺 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) small test objects (d) a magnet
10. 10.⚖️ 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 amount of clay
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.True or false: an empty capped bottle sinks in water. (a) False (b) True
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) yeast (d) a tub of water
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
16. 16.⚖️ 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
17. 17.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
18. 18.⚖️ 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 amount of clay (c) the shape of the clay (d) whether it floats
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
21. 21.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
22. 22.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a coin (d) an empty capped bottle
24. 24.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
25. 25.True or false: a pebble floats on water. (a) True (b) False
26. 26.⚖️ 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) False (b) True
27. 27.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
28. 28.🛟 Does a feather float or sink in water? (a) floats (b) sinks
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a results table (d) a magnet
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) False (b) True
31. 31.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
32. 32.🧺 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
33. 33.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) an empty capped bottle (d) an iron nail
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
35. 35.True or false: a ping-pong ball floats on water. (a) False (b) True
36. 36.🛟 Which of these floats on water? (a) a steel spoon (b) a glass marble (c) an iron nail (d) an ice cube
37. 37.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
38. 38.🛟 Which of these sinks in water? (a) a steel spoon (b) a feather (c) an ice-cream stick (d) a ping-pong ball
39. 39.⚖️ 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
40. 40.True or false: a pebble sinks in water. (a) False (b) True

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