Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 55 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
2. 2.⚖️ 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 amount of vinegar
3. 3.🔍 Which is the odd one out? (a) plain water (b) orange juice (c) sugar water (d) salt water
4. 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
5. 5.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a magnet (d) a balloon
6. 6.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
8. 8.⚖️ 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) False (b) True
9. 9.True or false: curd is an acid. (a) False (b) True
10. 10.True or false: salt water is a base. (a) False (b) True
11. 11.⚖️ 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 kind of balloon
12. 12.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
13. 13.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
14. 14.True or false: orange juice is an acid. (a) False (b) True
15. 15.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
16. 16.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.True or false: baking soda water is a base. (a) False (b) True
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) vinegar (d) baking soda
20. 20.True or false: curd is neutral. (a) False (b) True
21. 21.⚖️ 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) size of the balloon (d) the amount of vinegar
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) a tray for spills (d) a balloon
25. 25.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a battery cell (d) a tray for spills
27. 27.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
30. 30.True or false: plain water is neutral. (a) True (b) False
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) baking soda (d) a seed
32. 32.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
33. 33.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) an empty bottle (c) a tray for spills (d) a funnel or spoon
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
36. 36.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) an empty bottle (d) sugar
38. 38.True or false: tamarind water is neutral. (a) False (b) True
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) curd (b) orange juice (c) plain water (d) vinegar

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