Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 943 · 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: baking soda water is neutral. (a) False (b) True
2. 2.⚖️ 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) size of the balloon (c) the kind of balloon (d) spoons of baking soda
3. 3.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
4. 4.🫧 Which of these is a base? (a) orange juice (b) detergent water (c) tamarind water (d) lemon juice
5. 5.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) lemon juice (d) sugar water
6. 6.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
7. 7.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
10. 10.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) curd (d) plain water
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
12. 12.True or false: vinegar is an acid. (a) False (b) True
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) baking soda (d) sugar
14. 14.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
15. 15.🫧 Which of these is a base? (a) vinegar (b) sugar water (c) baking soda water (d) plain water
16. 16.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) orange juice (d) sugar water
17. 17.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
18. 18.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
20. 20.True or false: tamarind water is an acid. (a) True (b) False
21. 21.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
22. 22.True or false: curd is neutral. (a) False (b) True
23. 23.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
25. 25.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a mirror (d) baking soda
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a funnel or spoon (d) a comb
28. 28.🫧 Which of these is neutral? (a) curd (b) tamarind water (c) detergent water (d) salt water
29. 29.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
35. 35.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) sugar (c) a funnel or spoon (d) a tray for spills
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
38. 38.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed

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