Baking Soda and Vinegar Experiment Worksheet

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

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