Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 78 · 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.True or false: tamarind water is a base. (a) True (b) False
2. 2.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
3. 3.🫧 Which of these is a base? (a) tamarind water (b) salt water (c) soap solution (d) plain water
4. 4.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) vinegar
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
7. 7.True or false: sugar water is an acid. (a) True (b) False
8. 8.🫧 Which of these is a base? (a) lemon juice (b) detergent water (c) plain water (d) orange juice
9. 9.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) salt water (d) sugar water
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
12. 12.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.True or false: lemon juice is neutral. (a) True (b) False
14. 14.True or false: tamarind water is neutral. (a) False (b) True
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
17. 17.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) it is only dissolving (d) yes, a new gas forms
20. 20.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) curd (d) plain water
21. 21.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the same bottle (c) the kind of balloon (d) spoons of baking soda
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) an empty bottle (c) baking soda (d) a tray for spills
24. 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.True or false: salt water is an acid. (a) True (b) False
27. 27.🫧 Which of these is an acid? (a) baking soda water (b) vinegar (c) plain water (d) soap solution
28. 28.True or false: lemon juice is a base. (a) False (b) True
29. 29.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
30. 30.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
31. 31.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
32. 32.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a balloon (d) a battery cell
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.True or false: curd is neutral. (a) True (b) False
36. 36.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a balloon (c) a battery cell (d) sugar
38. 38.🫧 Which of these is an acid? (a) sugar water (b) soap solution (c) plain water (d) lemon juice
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a balloon (d) a seed

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