Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 361 · 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? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the amount of clay
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
3. 3.⚖️ 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) True (b) False
4. 4.🔮 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
5. 5.True or false: a cork sinks in water. (a) True (b) False
6. 6.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a towel for spills (d) a tub of water
8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 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 towel for spills (d) a magnet
11. 11.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🛟 Which of these floats on water? (a) a feather (b) an iron nail (c) a steel spoon (d) a coin
14. 14.⚖️ 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) False (b) True
15. 15.⚖️ 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 tub of water (b) the shape of the clay (c) the amount of clay (d) whether it floats
16. 16.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a balloon (d) a magnet
18. 18.True or false: a ball of clay floats on water. (a) True (b) False
19. 19.True or false: a glass marble sinks in water. (a) False (b) True
20. 20.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) a cork (b) a glass marble (c) a dry leaf (d) a ping-pong ball
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.True or false: a feather floats on water. (a) True (b) False
27. 27.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
28. 28.⚖️ 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) the shape of the clay (c) whether it floats (d) the kind of clay
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a battery cell (c) turmeric powder (d) a mirror
30. 30.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a steel spoon (d) an ice cube
32. 32.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a metal key (d) a piece of thermocol
33. 33.True or false: a pebble sinks in water. (a) False (b) True
34. 34.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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
37. 37.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
38. 38.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
39. 39.🧺 Do we need turmeric powder 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) small test objects (b) turmeric powder (c) a tub of water (d) a towel for spills

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