Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 684 · 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) small test objects (b) a tub of water (c) yeast (d) a results table
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a balloon (d) a magnet
4. 4.⚖️ 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
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) turmeric powder
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) small test objects (d) a tub of water
8. 8.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) a feather (d) a steel spoon
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a magnet
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
11. 11.True or false: a metal key floats on water. (a) True (b) False
12. 12.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it floats (d) it sinks
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) a magnet
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
20. 20.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) an ice-cream stick (d) a ball of clay
22. 22.True or false: an ice cube sinks in water. (a) False (b) True
23. 23.True or false: a glass marble floats on water. (a) True (b) False
24. 24.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
25. 25.🛟 Which of these sinks in water? (a) a feather (b) a steel spoon (c) an empty capped bottle (d) an ice-cream stick
26. 26.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
27. 27.⚖️ 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
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
29. 29.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a coin (d) a pebble
30. 30.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
31. 31.🛟 Does a coin float or sink in water? (a) floats (b) sinks
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a balloon
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a battery cell (d) a towel for spills
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a results table (d) a magnet
35. 35.⚖️ 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) the kind of clay (c) whether it floats
36. 36.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: a cork floats on water. (a) False (b) True
38. 38.⚖️ 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) the amount of clay (c) whether it floats
39. 39.🛟 Which of these sinks in water? (a) an iron nail (b) an empty capped bottle (c) a cork (d) an ice-cream stick
40. 40.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above

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