Baking Soda and Vinegar Experiment Worksheet
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.
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- 1.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
- 3.True or false: sugar water is a base. (a) False (b) True
- 4.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rub it hard (d) rinse with clean water
- 5.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) vinegar (d) a comb
- 7.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 8.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 9.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they react (d) they freeze
- 10.⚖️ 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 same bottle (c) spoons of baking soda
- 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
- 12.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) helium (d) oxygen
- 13.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) vinegar
- 14.📘 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
- 15.🫧 Which of these is a base? (a) salt water (b) soap solution (c) curd (d) vinegar
- 16.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) curd
- 17.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 18.True or false: orange juice is a base. (a) True (b) False
- 19.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 20.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a tray for spills (d) sugar
- 21.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) a tray for spills (d) a funnel or spoon
- 22.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 23.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) a comb (d) vinegar
- 24.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 25.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) baking soda (d) a seed
- 26.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) salt water (d) detergent water
- 27.True or false: plain water is neutral. (a) True (b) False
- 28.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
- 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the same bottle (c) the kind of balloon (d) spoons of baking soda
- 30.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 31.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
- 33.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
- 34.🫧 Which of these is an acid? (a) salt water (b) plain water (c) baking soda water (d) lemon juice
- 35.🫧 Which of these is a base? (a) sugar water (b) curd (c) baking soda water (d) tamarind water
- 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a seed (d) a funnel or spoon
- 37.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
- 39.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) sugar water (d) orange juice
- 40.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) a tray for spills (d) a mirror
Answer key
- needed
- keep it away from eyes
- False
- rinse with clean water
- tamarind water
- a comb
- neutral
- needed
- they react
- the same bottle
- size of the balloon
- carbon dioxide
- vinegar
- yes, a new gas forms
- soap solution
- curd
- not needed
- False
- needed
- sugar
- a seed
- needed
- a comb
- an acid
- baking soda
- vinegar
- True
- very little fizzing
- spoons of baking soda
- False
- an acid
- we measure it
- it grows bigger
- lemon juice
- baking soda water
- a seed
- needed
- we keep it the same
- sugar water
- a tray for spills
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids