Floating and Sinking Experiment Worksheet

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

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