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