Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 67 · 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.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm
2. 2.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) yeast
4. 4.🥚 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
5. 5.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
6. 6.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a glass marble (d) a ping-pong ball
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a results table (d) a magnet
8. 8.🛟 Does a coin float or sink in water? (a) sinks (b) floats
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
10. 10.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a feather (d) a metal key
11. 11.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) a coin (d) a piece of thermocol
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the kind of clay (d) the shape of the clay
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) turmeric powder (d) a results table
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the amount of clay (c) the tub of water (d) the shape of the clay
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a balloon (d) a results table
18. 18.🛟 Which of these floats on water? (a) a dry leaf (b) a metal key (c) a glass marble (d) a steel spoon
19. 19.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
20. 20.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
22. 22.🧺 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 mirror (d) small test objects
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a results table (d) a towel for spills
26. 26.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a steel spoon (d) a cork
27. 27.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) an iron nail (d) an ice-cream stick
28. 28.⚖️ 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
29. 29.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
30. 30.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
31. 31.⚖️ 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 change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) turmeric powder (d) a tub of water
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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a tub of water (d) a towel for spills
36. 36.🛟 Which of these sinks in water? (a) a coin (b) a ping-pong ball (c) an empty capped bottle (d) a cork
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a towel for spills (d) a tub of water
38. 38.⚖️ 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
39. 39.True or false: a dry leaf floats on water. (a) False (b) True
40. 40.🛟 Which of these sinks in water? (a) a pebble (b) a ping-pong ball (c) a feather (d) an ice-cream stick

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