Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 654 · 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) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
2. 2.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) it glows in the dark (d) nothing at all
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a funnel or spoon (d) sugar
4. 4.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
5. 5.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
6. 6.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) an empty bottle (d) a seed
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the same bottle (c) the amount of vinegar (d) spoons of baking soda
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
10. 10.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) an empty bottle (d) a comb
12. 12.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
13. 13.🫧 Which of these is a base? (a) lemon juice (b) sugar water (c) soap solution (d) curd
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a tray for spills (d) a magnet
15. 15.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) vinegar (d) a mirror
17. 17.🫧 Which of these is an acid? (a) vinegar (b) sugar water (c) baking soda water (d) plain water
18. 18.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a funnel or spoon (d) a mirror
20. 20.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) vinegar (d) baking soda water
21. 21.🫧 Which of these is neutral? (a) salt water (b) tamarind water (c) lemon juice (d) detergent water
22. 22.True or false: orange juice is neutral. (a) False (b) True
23. 23.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only dissolving (d) it is only melting
24. 24.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
25. 25.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) orange juice
26. 26.⚖️ 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
27. 27.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) salt water (d) sugar water
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
29. 29.True or false: lemon juice is a base. (a) True (b) False
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) a battery cell (d) a mirror
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) the amount of vinegar (c) size of the balloon (d) the kind of balloon
32. 32.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
33. 33.🛟 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
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
37. 37.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
38. 38.📘 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
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a funnel or spoon (d) a magnet
40. 40.⚖️ 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

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