Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 401 · 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.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) turmeric powder (d) a magnet
2. 2.🛟 Which of these sinks in water? (a) a dry leaf (b) a coin (c) an ice cube (d) a ping-pong ball
3. 3.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a coin (d) an empty capped bottle
4. 4.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a balloon
6. 6.🛟 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
7. 7.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
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) the shape of the clay (c) whether it floats (d) the kind of clay
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
10. 10.🧺 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) a battery cell
11. 11.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a ball of clay (d) a feather
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a tub of water (d) a results table
13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
15. 15.True or false: a dry leaf floats on water. (a) False (b) True
16. 16.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 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) a magnet (d) a towel for spills
18. 18.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
19. 19.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
22. 22.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
24. 24.🔍 Which is the odd one out? (a) a ball of clay (b) an ice cube (c) a cork (d) a feather
25. 25.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
26. 26.True or false: a cork floats on water. (a) False (b) True
27. 27.True or false: an iron nail floats on water. (a) True (b) False
28. 28.⚖️ 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 shape of the clay (c) the kind of clay (d) the tub of water
29. 29.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a results table (d) a battery cell
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
32. 32.🧺 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) turmeric powder
33. 33.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) a feather (d) a ping-pong ball
34. 34.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
35. 35.⚖️ 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) True (b) False
36. 36.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a cork (d) an ice cube
37. 37.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
38. 38.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a pebble (d) an ice-cream stick
39. 39.True or false: a ball of clay sinks in water. (a) False (b) True
40. 40.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats

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