Floating and Sinking Experiment Worksheet

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

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