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 not needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) vinegar (d) a balloon
- 2.🫧 Which of these is neutral? (a) curd (b) vinegar (c) soap solution (d) plain water
- 3.⚖️ 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) True (b) False
- 4.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 5.True or false: vinegar is neutral. (a) True (b) False
- 6.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
- 7.True or false: baking soda water is neutral. (a) True (b) False
- 8.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 9.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
- 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
- 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
- 12.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 13.🫧 Which of these is a base? (a) tamarind water (b) curd (c) vinegar (d) baking soda water
- 14.📘 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 freeze (d) they react
- 15.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 16.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a comb (c) a magnet (d) sugar
- 17.⚖️ 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
- 18.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
- 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
- 20.⚖️ 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
- 21.🔮 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 shrinks (d) it turns blue
- 22.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) lemon juice (d) tamarind water
- 23.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the same bottle
- 24.🛟 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
- 25.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
- 26.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a battery cell (c) a magnet (d) a mirror
- 27.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
- 28.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 29.🫧 Which of these is a base? (a) plain water (b) salt water (c) lemon juice (d) detergent water
- 30.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
- 31.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) salt water (d) baking soda water
- 32.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 33.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 34.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 35.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 36.📘 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
- 37.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) sugar water (d) detergent water
- 38.🫧 Which of these is a base? (a) vinegar (b) plain water (c) salt water (d) soap solution
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
- 40.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
Answer key
- a mirror
- plain water
- True
- False
- False
- lots of fizzy bubbles
- False
- an acid
- rinse with clean water
- very little fizzing
- True
- an acid
- baking soda water
- they react
- False
- a tray for spills
- False
- True
- we keep it the same
- we measure it
- it grows bigger
- detergent water
- spoons of baking soda
- keep it away from eyes
- vinegar
- a balloon
- False
- True
- detergent water
- False
- salt water
- True
- a base
- needed
- an acid
- yes, a new gas forms
- sugar water
- soap solution
- we keep it the same
- False
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