Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 475 · 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 shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a pebble (d) an empty capped bottle
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
6. 6.🛟 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
7. 7.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
8. 8.True or false: a glass marble floats on water. (a) False (b) True
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
10. 10.⚖️ 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) whether it floats (c) the tub of water (d) the kind of clay
11. 11.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ball of clay (c) an ice-cream stick (d) a ping-pong ball
12. 12.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) a ping-pong ball (d) a cork
15. 15.🛟 Which of these floats on water? (a) a pebble (b) a ping-pong ball (c) a metal key (d) a steel spoon
16. 16.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
17. 17.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
18. 18.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) small test objects (d) a tub of water
20. 20.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
21. 21.🔍 Which is the odd one out? (a) an iron nail (b) a piece of thermocol (c) a pebble (d) a steel spoon
22. 22.True or false: a dry leaf floats on water. (a) True (b) False
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) turmeric powder (d) a results table
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
25. 25.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
26. 26.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a feather (d) a steel spoon
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 what we measure. (a) False (b) True
28. 28.🔮 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
29. 29.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
30. 30.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) small test objects
33. 33.⚖️ 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 keep it the same (b) we measure it (c) we change it
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) small test objects (d) a tub of water
36. 36.True or false: a cork sinks in water. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a tub of water (d) small test objects
38. 38.🔍 Which is the odd one out? (a) an ice-cream stick (b) a glass marble (c) a coin (d) an iron nail
39. 39.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a pebble (d) a dry leaf

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