Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 814 · 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.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a towel for spills (d) small test objects
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) a ball of clay (d) an ice-cream stick
5. 5.⚖️ 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 tub of water
6. 6.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
8. 8.True or false: a piece of thermocol floats on water. (a) True (b) False
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) a piece of thermocol (d) an ice cube
11. 11.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
12. 12.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
13. 13.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) a dry leaf (d) a steel spoon
15. 15.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) an ice-cream stick (d) a metal key
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
17. 17.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
23. 23.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) a dry leaf (d) a cork
24. 24.🛟 Which of these sinks in water? (a) an iron nail (b) an ice cube (c) an empty capped bottle (d) a cork
25. 25.🔮 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
26. 26.True or false: a magnet 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 tub of water”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
29. 29.🧺 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 mirror
30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
31. 31.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a coin (d) a feather
32. 32.🚢 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
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
34. 34.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) an ice-cream stick (d) an empty capped bottle
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a magnet
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) yeast (d) a tub of water
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.⚖️ 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) True (b) False

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