Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 10 · 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.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a balloon (c) a battery cell (d) a seed
2. 2.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) the same bottle (d) size of the balloon
4. 4.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
5. 5.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a mirror (d) a funnel or spoon
7. 7.True or false: vinegar is a base. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) tamarind water
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) an empty bottle (d) a seed
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
12. 12.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) sugar (d) baking soda
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon (d) the same bottle
16. 16.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) curd
20. 20.🫧 Which of these is an acid? (a) sugar water (b) plain water (c) soap solution (d) tamarind water
21. 21.True or false: orange juice is a base. (a) False (b) True
22. 22.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
23. 23.True or false: lemon juice is an acid. (a) True (b) False
24. 24.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
25. 25.📘 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
26. 26.True or false: baking soda water is a base. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we change it
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) an empty bottle (d) a magnet
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a tray for spills (c) an empty bottle (d) a balloon
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) a funnel or spoon (d) a mirror
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
32. 32.⚖️ 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
33. 33.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) plain water (d) baking soda water
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) baking soda (d) a balloon
35. 35.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) baking soda water
37. 37.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
38. 38.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) a battery cell (d) vinegar
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) baking soda (c) a seed (d) a magnet

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