Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 580 · 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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) a ball of clay (b) a ping-pong ball (c) an ice cube (d) a cork
10. 10.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ 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 change it (c) we measure it
12. 12.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
13. 13.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) an empty capped bottle (d) a steel spoon
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
15. 15.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the tub (d) the air above
16. 16.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
17. 17.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a metal key (d) an empty capped bottle
21. 21.🧺 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
22. 22.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) a coin (d) a piece of thermocol
23. 23.🧺 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 tub of water (d) a magnet
24. 24.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) a ping-pong ball (d) a pebble
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) lots of salt stirred in (d) a few ice cubes
26. 26.True or false: a coin floats on water. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
28. 28.True or false: a piece of thermocol sinks in water. (a) True (b) False
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a towel for spills (d) a mirror
30. 30.True or false: an iron nail floats on water. (a) True (b) False
31. 31.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
33. 33.True or false: a metal key floats on water. (a) True (b) False
34. 34.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a cork (d) a glass marble
35. 35.🛟 Which of these floats on water? (a) a glass marble (b) an ice cube (c) a coin (d) a steel spoon
36. 36.⚖️ 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) True (b) False
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) small test objects (d) turmeric powder
38. 38.🧺 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) a balloon
39. 39.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a pebble (d) a dry leaf

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