Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 472 · 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 needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a glass marble (d) a cork
3. 3.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
5. 5.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) an ice-cream stick (d) an ice cube
9. 9.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) a battery cell
11. 11.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a cork (d) a dry leaf
12. 12.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) a glass marble (d) a cork
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a mirror
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) yeast (c) small test objects (d) a results table
15. 15.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a piece of thermocol (d) a metal key
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a balloon
17. 17.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
18. 18.⚖️ 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 amount of clay (c) the shape of the clay
19. 19.🔍 Which is the odd one out? (a) a ping-pong ball (b) a metal key (c) a ball of clay (d) a steel spoon
20. 20.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
21. 21.🥚 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
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) False (b) True
23. 23.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) turmeric powder (d) a towel for spills
25. 25.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) yeast (d) a battery cell
27. 27.🧺 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) turmeric powder (d) a towel for spills
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
29. 29.🔮 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
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) turmeric powder
31. 31.⚖️ 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 keep it the same (b) we measure it (c) we change it
32. 32.True or false: an empty capped bottle floats on water. (a) True (b) False
33. 33.🛟 Which of these floats on water? (a) a steel spoon (b) a feather (c) a coin (d) a metal key
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.True or false: an ice-cream stick floats on water. (a) True (b) False
36. 36.🛟 Does a cork float or sink in water? (a) sinks (b) floats
37. 37.⚖️ 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) False (b) True
38. 38.True or false: a steel spoon sinks in water. (a) False (b) True
39. 39.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
40. 40.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats

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