Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 571 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) a tray for spills (d) a balloon
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the same bottle
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) detergent water (d) baking soda water
5. 5.🔮 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
6. 6.True or false: curd is neutral. (a) True (b) False
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.⚖️ 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) True (b) False
9. 9.True or false: plain water is an acid. (a) True (b) False
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a funnel or spoon (d) a mirror
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) vinegar (d) a funnel or spoon
12. 12.📘 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
13. 13.⚖️ 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
14. 14.🫧 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
15. 15.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
16. 16.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the amount of vinegar
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) sugar (d) a balloon
21. 21.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
23. 23.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
24. 24.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) orange juice (d) salt water
25. 25.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
26. 26.🫧 Which of these is a base? (a) tamarind water (b) orange juice (c) soap solution (d) salt water
27. 27.🔍 Which is the odd one out? (a) orange juice (b) lemon juice (c) curd (d) detergent water
28. 28.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) an empty bottle (d) a tray for spills
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
31. 31.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) helium (d) hydrogen
32. 32.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) soap solution (d) detergent water
33. 33.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
34. 34.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) vinegar (d) sugar
36. 36.🫧 Which of these is neutral? (a) curd (b) tamarind water (c) salt water (d) lemon juice
37. 37.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) salt water (d) detergent water
38. 38.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
39. 39.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
40. 40.🫧 Which of these is a base? (a) baking soda water (b) curd (c) lemon juice (d) salt water

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