Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 569 · 40 questions

What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.

1. 1.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: orange juice is a base. (a) True (b) False
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
4. 4.True or false: salt water is neutral. (a) True (b) False
5. 5.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
7. 7.True or false: curd is neutral. (a) False (b) True
8. 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
9. 9.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
10. 10.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
11. 11.True or false: soap solution is neutral. (a) True (b) False
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a balloon (d) sugar
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) the amount of vinegar (d) spoons of baking soda
14. 14.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) orange juice (d) sugar water
15. 15.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
17. 17.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
18. 18.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it glows in the dark (d) it turns to ice
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) sugar (d) a battery cell
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a balloon (d) a seed
22. 22.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
23. 23.True or false: detergent water is neutral. (a) True (b) False
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a funnel or spoon (d) a magnet
25. 25.True or false: salt water is a base. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) sugar water (b) vinegar (c) salt water (d) plain water
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) orange juice (d) lemon juice
29. 29.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
30. 30.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
31. 31.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) vinegar (d) a seed
34. 34.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) tamarind water (d) sugar water
35. 35.🫧 Which of these is a base? (a) sugar water (b) vinegar (c) soap solution (d) plain water
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) the kind of balloon (d) size of the balloon
37. 37.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) vinegar (d) a mirror
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a comb (d) a funnel or spoon
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon

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