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