Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 995 · 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: a dry leaf sinks in water. (a) False (b) True
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
3. 3.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) yeast (d) small test objects
5. 5.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
6. 6.True or false: a cork floats on water. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a metal key (d) a ping-pong ball
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the tub of water
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
12. 12.True or false: a glass marble sinks in water. (a) True (b) False
13. 13.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
14. 14.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
15. 15.⚖️ 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 kind of clay (c) the shape of the clay (d) the tub of water
16. 16.🛟 Which of these sinks in water? (a) a glass marble (b) an empty capped bottle (c) a cork (d) an ice cube
17. 17.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
18. 18.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
19. 19.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a cork (d) a coin
21. 21.⚖️ 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 keep it the same (b) we measure it (c) we change it
22. 22.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
23. 23.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
25. 25.⚖️ 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) True (b) False
26. 26.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a ball of clay (d) an empty capped bottle
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
28. 28.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
30. 30.🔍 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
31. 31.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) an ice cube (d) a piece of thermocol
32. 32.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
33. 33.True or false: a steel spoon floats on water. (a) False (b) True
34. 34.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
35. 35.🧺 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) a magnet
36. 36.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
37. 37.🔮 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 dissolves (d) it sinks faster
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
40. 40.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks

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