Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 140 · 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 of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a balloon
2. 2.⚖️ 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) whether it floats (c) the amount of clay (d) the shape of the clay
3. 3.True or false: an iron nail floats on water. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) an empty capped bottle (d) an ice cube
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
6. 6.True or false: a ping-pong ball sinks in water. (a) True (b) False
7. 7.🛟 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
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) a battery cell
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it sinks faster (d) it dissolves
12. 12.🛟 Which of these floats on water? (a) a ball of clay (b) an ice-cream stick (c) a pebble (d) a steel spoon
13. 13.🔍 Which is the odd one out? (a) a piece of thermocol (b) a feather (c) a coin (d) an empty capped bottle
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
16. 16.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
17. 17.⚖️ 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
18. 18.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
19. 19.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) a piece of thermocol (b) a glass marble (c) a ball of clay (d) a coin
22. 22.⚖️ 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) True (b) False
23. 23.⚖️ 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 tub of water (c) whether it floats (d) the amount of clay
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
26. 26.⚖️ 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
27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
28. 28.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a tub of water (d) a results table
30. 30.🛟 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 keep children safe (d) to win a prize
31. 31.True or false: a ball of clay sinks in water. (a) True (b) False
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) steel is very light (d) sea water is warm
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a mirror (d) a towel for spills
35. 35.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
36. 36.True or false: a steel spoon floats on water. (a) False (b) True
37. 37.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
38. 38.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
39. 39.True or false: a dry leaf sinks in water. (a) False (b) True
40. 40.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in

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