Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 986 · 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.🛟 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
2. 2.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
3. 3.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
4. 4.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a feather (c) a steel spoon (d) a cork
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) a towel for spills (d) small test objects
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a towel for spills (d) a tub of water
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a mirror (d) yeast
10. 10.🛟 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 hide the corks (d) to win a prize
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a tub of water (d) a towel for spills
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a mirror
13. 13.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
14. 14.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
15. 15.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
18. 18.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
19. 19.🔮 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
20. 20.⚖️ 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 change it (c) we measure it
21. 21.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a steel spoon (d) a piece of thermocol
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) turmeric powder
24. 24.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a metal key (d) an empty capped bottle
25. 25.🛟 Which of these floats on water? (a) an ice cube (b) a glass marble (c) an iron nail (d) a ball of clay
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
27. 27.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
29. 29.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a pebble (d) a ping-pong ball
32. 32.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
33. 33.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ping-pong ball (c) a cork (d) a metal key
34. 34.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a tub of water (c) small test objects (d) a towel for spills
36. 36.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
37. 37.True or false: a coin sinks in water. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) a dry leaf (b) a ping-pong ball (c) a pebble (d) a piece of thermocol
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a mirror (d) a results table
40. 40.🛟 Does a coin float or sink in water? (a) floats (b) sinks

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