Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 738 · 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 floats on water? (a) a ball of clay (b) a pebble (c) an iron nail (d) a dry leaf
2. 2.⚖️ 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
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
4. 4.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
6. 6.🛟 Which of these floats on water? (a) a feather (b) a coin (c) a metal key (d) a ball of clay
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it bounces up (d) it floats
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) a results table
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) small test objects (d) a towel for spills
10. 10.True or false: an ice cube sinks in water. (a) False (b) True
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a mirror (d) small test objects
12. 12.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
14. 14.True or false: a battery cell is needed for the float-or-sink test. (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 kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
16. 16.🛟 Does a cork float or sink in water? (a) floats (b) sinks
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a feather (d) a metal key
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a balloon (d) a towel for spills
22. 22.🧺 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 magnet
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
24. 24.🛟 Which of these floats on water? (a) an ice-cream stick (b) a ball of clay (c) an iron nail (d) a coin
25. 25.⚖️ 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 measure it (b) we keep it the same (c) we change it
26. 26.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
27. 27.True or false: a dry leaf floats on water. (a) False (b) True
28. 28.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
29. 29.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.True or false: a dry leaf sinks in water. (a) True (b) False
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) a battery cell
33. 33.True or false: an empty capped bottle floats on water. (a) True (b) False
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) turmeric powder (d) small test objects
37. 37.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
38. 38.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
39. 39.True or false: a steel spoon floats on water. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a dry leaf (d) a ping-pong ball

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