Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 490 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
2. 2.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a magnet
5. 5.🛟 Which of these floats on water? (a) a feather (b) an iron nail (c) a steel spoon (d) a ball of clay
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) a tub of water (d) small test objects
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
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) the amount of clay (c) the kind of clay (d) whether it floats
11. 11.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
13. 13.🛟 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
14. 14.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
15. 15.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
16. 16.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
17. 17.🛟 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 hide the corks (d) to keep children safe
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a ping-pong ball (d) a pebble
23. 23.🛟 Which of these sinks in water? (a) a cork (b) a ball of clay (c) an ice-cream stick (d) an ice cube
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the kind of clay (d) whether it floats
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) small test objects
26. 26.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a towel for spills (d) a results table
28. 28.🥚 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
29. 29.⚖️ 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
30. 30.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
32. 32.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
33. 33.🛟 Which of these sinks in water? (a) an ice cube (b) a dry leaf (c) a piece of thermocol (d) a glass marble
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
35. 35.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a metal key (d) an ice-cream stick
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
37. 37.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
39. 39.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
40. 40.⚖️ 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

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