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