Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 671 · 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 balloon is needed for the float-or-sink test. (a) True (b) False
2. 2.True or false: a feather sinks in water. (a) True (b) False
3. 3.⚖️ 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
4. 4.True or false: a dry leaf sinks in water. (a) True (b) False
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
6. 6.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
7. 7.🛟 Which of these floats on water? (a) a ball of clay (b) a feather (c) a metal key (d) a pebble
8. 8.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a steel spoon (d) an empty capped bottle
9. 9.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a magnet
11. 11.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) an ice cube (d) a coin
12. 12.⚖️ 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
13. 13.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
15. 15.🧺 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) turmeric powder
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
18. 18.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
19. 19.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
22. 22.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
23. 23.True or false: a pebble sinks in water. (a) True (b) False
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
25. 25.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🛟 Which of these floats on water? (a) a glass marble (b) an ice cube (c) a pebble (d) a ball of clay
28. 28.True or false: a ping-pong ball sinks in water. (a) False (b) True
29. 29.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: an iron nail floats on water. (a) True (b) False
31. 31.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
32. 32.⚖️ 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
33. 33.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) an ice-cream stick (d) a steel spoon
34. 34.⚖️ 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
35. 35.🛟 Which of these sinks in water? (a) a ball of clay (b) a cork (c) an ice cube (d) a feather
36. 36.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the cork itself (d) the tub
37. 37.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a pebble (d) a feather
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) turmeric powder (d) yeast
39. 39.⚖️ 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 amount of clay (b) the kind of clay (c) the shape of the clay (d) the tub of water
40. 40.🧺 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) yeast (d) a tub of water

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