Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 443 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
2. 2.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a steel spoon (d) an ice cube
3. 3.🧺 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) small test objects (d) a balloon
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
5. 5.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) turmeric powder (d) small test objects
7. 7.🧺 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 towel for spills (d) a battery cell
8. 8.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: an ice-cream stick floats on water. (a) True (b) False
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
13. 13.⚖️ 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
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
15. 15.🧺 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 magnet (d) a tub of water
16. 16.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
17. 17.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the kind of clay
19. 19.🛟 Does a feather float or sink in water? (a) floats (b) sinks
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a results table (d) a balloon
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) small test objects (d) a tub of water
23. 23.⚖️ 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
24. 24.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the tub (d) the cork itself
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
28. 28.True or false: an ice-cream stick sinks in water. (a) True (b) False
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) small test objects (d) a results table
30. 30.🥚 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
31. 31.🛟 Which of these floats on water? (a) a piece of thermocol (b) a ball of clay (c) a glass marble (d) a steel spoon
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) a dry leaf (c) a ball of clay (d) a coin
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.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
37. 37.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a piece of thermocol (d) a ball of clay
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
39. 39.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
40. 40.⚖️ 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

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