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