Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 668 · 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: a mirror is needed for the float-or-sink test. (a) False (b) True
2. 2.True or false: a glass marble sinks in water. (a) True (b) False
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) small test objects (d) a towel for spills
4. 4.🔍 Which is the odd one out? (a) a ping-pong ball (b) an empty capped bottle (c) a feather (d) a glass marble
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a magnet (d) small test objects
6. 6.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
7. 7.True or false: an ice cube sinks in water. (a) False (b) True
8. 8.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
9. 9.⚖️ 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
10. 10.True or false: a piece of thermocol sinks in water. (a) False (b) True
11. 11.🛟 Which of these floats on water? (a) a glass marble (b) an ice cube (c) a pebble (d) a metal key
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a battery cell (d) a mirror
13. 13.⚖️ 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 tub of water (b) the kind of clay (c) the amount of clay (d) the shape of the clay
14. 14.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) turmeric powder
16. 16.🛟 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
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a pebble (d) a ping-pong ball
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a steel spoon (d) an ice cube
22. 22.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
23. 23.⚖️ 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) True (b) False
24. 24.True or false: a dry leaf floats on water. (a) False (b) True
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
26. 26.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
27. 27.🔍 Which is the odd one out? (a) a dry leaf (b) a metal key (c) a coin (d) a steel spoon
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
29. 29.⚖️ 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) the shape of the clay (c) whether it floats
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) yeast (d) a balloon
31. 31.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a ball of clay (d) an ice cube
34. 34.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
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 kind of clay is what we measure. (a) False (b) True
37. 37.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
38. 38.🔍 Which is the odd one out? (a) a metal key (b) a ping-pong ball (c) a feather (d) an ice cube
39. 39.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
40. 40.⚖️ 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

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