Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 220 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a results table (d) a towel for spills
2. 2.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
3. 3.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a towel for spills (d) a results table
5. 5.⚖️ 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
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
8. 8.⚖️ 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
9. 9.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
10. 10.True or false: a ball of clay floats on water. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) a steel spoon (d) a pebble
12. 12.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a tub of water
14. 14.🔍 Which is the odd one out? (a) a metal key (b) a feather (c) a coin (d) a pebble
15. 15.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) an ice-cream stick (d) a pebble
16. 16.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
17. 17.⚖️ 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 measure it (c) we change it
18. 18.True or false: a coin floats on water. (a) False (b) True
19. 19.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) a feather (d) a piece of thermocol
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
23. 23.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a results table (d) a towel for spills
28. 28.True or false: a ping-pong ball sinks in water. (a) False (b) True
29. 29.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
30. 30.🛟 Which of these sinks in water? (a) a glass marble (b) a dry leaf (c) a piece of thermocol (d) a ping-pong ball
31. 31.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a ping-pong ball (d) a steel spoon
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a tub of water (d) yeast
33. 33.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a results table
35. 35.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: a dry leaf floats on water. (a) True (b) False
37. 37.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
38. 38.⚖️ 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 tub of water (c) whether it floats (d) the shape of the clay
39. 39.⚖️ 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) False (b) True
40. 40.⚖️ 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 change it (c) we measure it

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