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.⚖️ 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
- 2.🔮 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
- 3.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) orange juice (d) lemon juice
- 4.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 5.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 6.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 7.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a magnet (c) a seed (d) a mirror
- 8.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 9.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 10.⚖️ 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
- 11.🔍 Which is the odd one out? (a) salt water (b) curd (c) sugar water (d) plain water
- 12.True or false: salt water is neutral. (a) False (b) True
- 13.True or false: soap solution is a base. (a) False (b) True
- 14.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
- 15.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a mirror (d) a tray for spills
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a seed
- 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a comb (d) an empty bottle
- 20.True or false: salt water is an acid. (a) True (b) False
- 21.🫧 Which of these is a base? (a) lemon juice (b) salt water (c) vinegar (d) baking soda water
- 22.⚖️ 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
- 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
- 24.⚖️ 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
- 25.⚖️ 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
- 26.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 27.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
- 28.True or false: lemon juice is an acid. (a) False (b) True
- 29.True or false: baking soda water is an acid. (a) True (b) False
- 30.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a battery cell (c) a tray for spills (d) baking soda
- 32.True or false: detergent water is an acid. (a) False (b) True
- 33.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 34.True or false: curd is neutral. (a) False (b) True
- 35.🫧 Which of these is neutral? (a) vinegar (b) plain water (c) lemon juice (d) tamarind water
- 36.🫧 Which of these is an acid? (a) baking soda water (b) vinegar (c) salt water (d) detergent water
- 37.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) salt water (d) vinegar
- 38.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
- 39.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) size of the balloon (d) spoons of baking soda
Answer key
- we measure it
- it grows bigger
- baking soda water
- not needed
- False
- False
- baking soda
- needed
- an acid
- we keep it the same
- curd
- True
- True
- False
- False
- a mirror
- False
- a seed
- a comb
- False
- baking soda water
- spoons of baking soda
- False
- we keep it the same
- False
- True
- keep it away from eyes
- True
- False
- not needed
- a battery cell
- False
- needed
- False
- plain water
- vinegar
- salt water
- rinse with clean water
- neutral
- size of the balloon
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids