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 what we measure. (a) True (b) False
- 2.True or false: curd is an acid. (a) False (b) True
- 3.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) tamarind water (d) curd
- 4.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) an empty bottle (d) sugar
- 6.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) an empty bottle (d) a battery cell
- 8.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) lemon juice (d) sugar water
- 9.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) salt water (d) curd
- 10.⚖️ 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) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
- 11.⚖️ 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) spoons of baking soda (d) the kind of balloon
- 12.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) baking soda (d) a magnet
- 14.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
- 15.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 16.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
- 17.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 18.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 19.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 20.🔍 Which is the odd one out? (a) tamarind water (b) detergent water (c) baking soda water (d) soap solution
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
- 22.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a balloon (c) sugar (d) a magnet
- 23.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
- 24.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a seed (c) baking soda (d) an empty bottle
- 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
- 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) a balloon (d) baking soda
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
- 28.🔍 Which is the odd one out? (a) curd (b) plain water (c) vinegar (d) orange juice
- 29.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 30.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
- 31.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
- 32.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
- 33.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a magnet (c) a battery cell (d) a mirror
- 34.True or false: tamarind water is a base. (a) True (b) False
- 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) baking soda (d) a seed
- 36.⚖️ 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
- 37.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 38.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 39.True or false: salt water is neutral. (a) True (b) False
- 40.True or false: salt water is a base. (a) True (b) False
Answer key
- True
- True
- baking soda water
- True
- an empty bottle
- not needed
- a battery cell
- lemon juice
- salt water
- spoons of baking soda
- size of the balloon
- needed
- a magnet
- False
- not needed
- rinse with clean water
- a base
- a base
- an acid
- tamarind water
- we keep it the same
- a balloon
- lots of fizzy bubbles
- a seed
- keep it away from eyes
- a mirror
- we change it
- plain water
- needed
- True
- yes, a new gas forms
- very little fizzing
- vinegar
- False
- a seed
- we keep it the same
- not needed
- neutral
- True
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids