Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 203 · 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 kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
3. 3.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
4. 4.🧺 Do we need a balloon 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 magnet (b) a towel for spills (c) a results table (d) a tub of water
6. 6.🧺 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 mirror (d) a results table
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these floats on water? (a) an ice cube (b) a pebble (c) an iron nail (d) a ball of clay
9. 9.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
11. 11.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) an ice-cream stick (d) a steel spoon
12. 12.🧺 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) small test objects (d) a battery cell
13. 13.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a coin (d) a piece of thermocol
14. 14.🛟 Which of these floats on water? (a) an ice-cream stick (b) a pebble (c) a glass marble (d) a metal key
15. 15.🛟 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 hide the corks (d) to win a prize
16. 16.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a balloon (d) small test objects
18. 18.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) an ice cube (d) a cork
19. 19.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) an ice-cream stick (d) a pebble
20. 20.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) an iron nail (d) a feather
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
22. 22.True or false: a steel spoon sinks in water. (a) True (b) False
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the tub of water
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) small test objects (d) a results table
26. 26.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
27. 27.🧺 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 tub of water (d) yeast
28. 28.True or false: a ball of clay floats on water. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) an ice cube (b) a metal key (c) a dry leaf (d) an ice-cream stick
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) yeast (d) a tub of water
32. 32.🛟 Which of these sinks in water? (a) an ice cube (b) a ping-pong ball (c) an ice-cream stick (d) a glass marble
33. 33.⚖️ 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) the kind of clay (c) the shape of the clay (d) the tub of water
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) small test objects (d) turmeric powder
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
36. 36.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) a towel for spills (d) a tub of water
38. 38.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
39. 39.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
40. 40.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats

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