Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 80 · 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.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
2. 2.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
3. 3.🛟 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
4. 4.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) baking soda (d) a tray for spills
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
8. 8.True or false: baking soda water is a base. (a) True (b) False
9. 9.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a balloon (c) baking soda (d) a funnel or spoon
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a seed (d) a balloon
12. 12.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
13. 13.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
14. 14.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a seed (d) an empty bottle
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) baking soda (c) a mirror (d) a battery cell
19. 19.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
20. 20.📘 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
21. 21.⚖️ 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
22. 22.True or false: curd is a base. (a) True (b) False
23. 23.🫧 Which of these is a base? (a) vinegar (b) detergent water (c) curd (d) sugar water
24. 24.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
25. 25.🔍 Which is the odd one out? (a) soap solution (b) curd (c) tamarind water (d) orange juice
26. 26.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
27. 27.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.True or false: tamarind water is a base. (a) True (b) False
30. 30.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) soap solution (d) vinegar
31. 31.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
32. 32.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
33. 33.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) the balloon bursts (d) very little fizzing
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a seed (c) an empty bottle (d) vinegar
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
36. 36.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) salt water (d) curd
37. 37.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) a balloon (d) baking soda
39. 39.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
40. 40.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids