Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 520 · 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 tub of water”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.⚖️ 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
3. 3.🔮 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
4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a results table (d) a tub of water
6. 6.True or false: an ice-cream stick sinks in water. (a) False (b) True
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
8. 8.⚖️ 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) whether it floats (c) the kind of clay (d) the shape of the clay
9. 9.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) a steel spoon (d) a glass marble
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
11. 11.⚖️ 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
12. 12.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
13. 13.True or false: a steel spoon floats on water. (a) False (b) True
14. 14.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the water (d) the tub
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a tub of water (d) small test objects
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a towel for spills (d) a tub of water
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a magnet (d) small test objects
18. 18.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) a pebble (b) an ice cube (c) an iron nail (d) a glass marble
22. 22.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) an ice cube (d) a feather
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a tub of water (d) a results table
26. 26.🛟 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
27. 27.⚖️ 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) False (b) True
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) turmeric powder (d) a towel for spills
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a tub of water (d) a results table
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) a ping-pong ball (d) a coin
32. 32.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
33. 33.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
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) neither of them (d) the big log
35. 35.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a feather (d) a steel spoon
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a towel for spills (d) a mirror
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a dry leaf (d) a metal key
38. 38.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a balloon (d) a magnet
40. 40.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks

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