Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 165 · 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 magnet is needed for the float-or-sink test. (a) True (b) False
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) small test objects
4. 4.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
6. 6.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
7. 7.🧺 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) a battery cell (d) a tub of water
8. 8.🛟 Does a cork float or sink in water? (a) sinks (b) floats
9. 9.⚖️ 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
10. 10.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
11. 11.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
12. 12.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
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 tub of water (c) whether it floats (d) the amount of clay
14. 14.🔍 Which is the odd one out? (a) an empty capped bottle (b) an iron nail (c) a feather (d) an ice cube
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
16. 16.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a mirror (d) turmeric powder
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
19. 19.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: an ice-cream stick sinks in water. (a) True (b) False
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) small test objects (d) a magnet
22. 22.🛟 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
23. 23.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
24. 24.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
25. 25.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
27. 27.🧺 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 mirror
28. 28.🧺 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 magnet
29. 29.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
30. 30.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a steel spoon (c) an ice-cream stick (d) a ping-pong ball
36. 36.True or false: an ice cube sinks in water. (a) True (b) False
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
38. 38.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
39. 39.🛟 Which of these sinks in water? (a) a dry leaf (b) a glass marble (c) a ping-pong ball (d) a cork
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a tub of water (d) a towel for spills

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