Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 828 · 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 results table (c) a tub of water (d) a balloon
2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the amount of clay (d) whether it floats
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
6. 6.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
7. 7.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
8. 8.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a dry leaf (d) a ball of clay
11. 11.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
13. 13.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 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
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
16. 16.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a piece of thermocol (d) a metal key
17. 17.True or false: a metal key floats on water. (a) False (b) True
18. 18.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a mirror (d) a towel for spills
20. 20.⚖️ 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
21. 21.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
22. 22.True or false: a cork sinks in water. (a) True (b) False
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a results table (d) a towel for spills
25. 25.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a ball of clay (d) a piece of thermocol
26. 26.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
27. 27.True or false: an ice-cream stick sinks in water. (a) True (b) False
28. 28.True or false: an ice cube sinks in water. (a) False (b) True
29. 29.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a pebble (d) a piece of thermocol
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a steel spoon (d) an empty capped bottle
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
32. 32.⚖️ 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
33. 33.⚖️ 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) whether it floats (d) the kind of clay
34. 34.⚖️ 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
35. 35.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
36. 36.⚖️ 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
37. 37.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice-cream stick (c) a glass marble (d) a dry leaf
39. 39.🧺 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 battery cell
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a results table (d) a tub of water

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