Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 653 · 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.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) a coin (d) an ice-cream stick
4. 4.True or false: a glass marble floats on water. (a) True (b) False
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) False (b) True
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a tub of water (d) a towel for spills
7. 7.🥚 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
8. 8.⚖️ 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
9. 9.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
11. 11.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a towel for spills (d) a results table
14. 14.⚖️ 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 kind of clay (b) the amount of clay (c) whether it floats (d) the shape of the clay
15. 15.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
16. 16.🛟 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
17. 17.⚖️ 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
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) a towel for spills
20. 20.True or false: a steel spoon sinks in water. (a) True (b) False
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
22. 22.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a results table
24. 24.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
27. 27.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a dry leaf (d) a coin
30. 30.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a metal key (c) a cork (d) a dry leaf
31. 31.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ 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
34. 34.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.⚖️ 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 keep it the same (b) we measure it (c) we change it
37. 37.True or false: a coin floats on water. (a) False (b) True
38. 38.True or false: a ping-pong ball floats on water. (a) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) yeast
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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