Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 95 · 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.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
2. 2.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) an iron nail (d) an ice-cream stick
3. 3.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a ball of clay (d) an iron nail
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a magnet (d) a results table
5. 5.🧺 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) a tub of water (d) turmeric powder
6. 6.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the cork itself (d) the tub
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a magnet (d) a battery cell
8. 8.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) an iron nail (d) a glass marble
9. 9.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
10. 10.🧺 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) small test objects (d) a mirror
11. 11.⚖️ 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
12. 12.True or false: an ice-cream stick sinks in water. (a) True (b) False
13. 13.⚖️ 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) False (b) True
14. 14.True or false: an iron nail floats on water. (a) True (b) False
15. 15.True or false: a ping-pong ball sinks in water. (a) True (b) False
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a balloon (d) a magnet
17. 17.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
18. 18.True or false: an ice cube floats on water. (a) True (b) False
19. 19.⚖️ 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 tub of water (d) the amount of clay
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
22. 22.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a results table (d) a tub of water
24. 24.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a metal key (d) a glass marble
25. 25.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a piece of thermocol (d) an empty capped bottle
26. 26.🧺 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 results table (d) yeast
27. 27.True or false: a piece of thermocol sinks in water. (a) True (b) False
28. 28.⚖️ 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) whether it floats (c) the shape of the clay
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) a magnet
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
32. 32.True or false: a cork sinks in water. (a) False (b) True
33. 33.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) the small pebble (d) neither of them
34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
35. 35.⚖️ 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
36. 36.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
37. 37.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) an iron nail (d) a metal key
39. 39.🧺 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) a battery cell
40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed

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