Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 755 · 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) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a results table (d) small test objects
3. 3.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (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? True or false: whether it floats is the one thing we change. (a) True (b) False
7. 7.True or false: a ball of clay floats on water. (a) True (b) False
8. 8.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
9. 9.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) an empty capped bottle (d) a steel spoon
10. 10.True or false: an iron nail sinks in water. (a) False (b) True
11. 11.⚖️ 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 amount of clay (b) the tub of water (c) the shape of the clay (d) the kind of clay
12. 12.⚖️ 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
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
14. 14.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a ping-pong ball (c) a ball of clay (d) an ice-cream stick
15. 15.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) an empty capped bottle (d) a ping-pong ball
16. 16.⚖️ 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 shape of the clay (c) the tub of water (d) the amount of clay
17. 17.🛟 Which of these floats on water? (a) a coin (b) an ice-cream stick (c) an iron nail (d) a metal key
18. 18.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
21. 21.True or false: a metal key floats on water. (a) False (b) True
22. 22.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
23. 23.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a cork floats on water. (a) True (b) False
25. 25.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a ping-pong ball (d) a coin
26. 26.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
27. 27.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
29. 29.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) an iron nail (d) an empty capped bottle
30. 30.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a metal key (d) an ice cube
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
32. 32.⚖️ 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
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) an ice-cream stick (d) a metal key
35. 35.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
36. 36.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a dry leaf (d) a glass marble
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
39. 39.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
40. 40.⚖️ 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 amount of clay

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