Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 795 · 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 keep it the same (b) we measure it (c) we change it
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
3. 3.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) a ping-pong ball (d) a pebble
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) small test objects (d) a towel for spills
5. 5.True or false: a cork sinks in water. (a) False (b) True
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
7. 7.🛟 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
8. 8.🛟 Which of these floats on water? (a) a piece of thermocol (b) a glass marble (c) a coin (d) a metal key
9. 9.⚖️ 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
10. 10.True or false: a dry leaf sinks in water. (a) True (b) False
11. 11.True or false: a glass marble floats on water. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a glass marble (d) an empty capped bottle
13. 13.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
14. 14.🔍 Which is the odd one out? (a) an empty capped bottle (b) a glass marble (c) a cork (d) an ice-cream stick
15. 15.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
16. 16.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a pebble (d) a piece of thermocol
17. 17.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a glass marble (d) a piece of thermocol
18. 18.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
19. 19.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
20. 20.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a cork (d) an iron nail
21. 21.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) a piece of thermocol (d) an iron nail
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a magnet
23. 23.⚖️ 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
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) turmeric powder (d) a towel for spills
26. 26.True or false: small test objects is 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 mirror (d) small test objects
28. 28.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
29. 29.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) an ice cube (b) a ball of clay (c) a feather (d) a piece of thermocol
31. 31.True or false: a cork floats on water. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a coin (b) a feather (c) a pebble (d) an iron nail
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
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 keep it the same (b) we measure it (c) we change it
35. 35.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
36. 36.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
37. 37.⚖️ 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) whether it floats (c) the tub of water
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) yeast (c) turmeric powder (d) a balloon
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
40. 40.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False

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