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