Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 613 · 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? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 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 towel for spills
3. 3.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
4. 4.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
5. 5.True or false: an ice-cream stick sinks in water. (a) False (b) True
6. 6.🛟 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
7. 7.🛟 Does a cork float or sink in water? (a) floats (b) sinks
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a towel for spills (d) a results table
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
11. 11.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
12. 12.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
13. 13.⚖️ 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 kind of clay (c) whether it floats (d) the amount of clay
14. 14.True or false: a ball of clay sinks in water. (a) True (b) False
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a results table (c) a towel for spills (d) a tub of water
17. 17.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a results table (d) small test objects
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) yeast
20. 20.🔍 Which is the odd one out? (a) an ice cube (b) a piece of thermocol (c) a coin (d) a feather
21. 21.🔮 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 turns to stone (d) it can float
22. 22.🛟 Which of these floats on water? (a) a piece of thermocol (b) a ball of clay (c) an iron nail (d) a pebble
23. 23.True or false: an iron nail floats on water. (a) True (b) False
24. 24.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
25. 25.🔍 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
26. 26.🧺 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 magnet (d) a towel for spills
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a balloon (d) turmeric powder
28. 28.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a metal key (c) a cork (d) a dry leaf
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the tub of water
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.⚖️ 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) True (b) False
32. 32.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Which of these sinks in water? (a) a cork (b) a ball of clay (c) an empty capped bottle (d) a feather
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
35. 35.🛟 Does a feather float or sink in water? (a) sinks (b) floats
36. 36.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
37. 37.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
39. 39.⚖️ 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 tub of water
40. 40.True or false: a ping-pong ball floats on water. (a) True (b) False

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