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 sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 2.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 3.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
- 4.⚖️ 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
- 5.⚖️ 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) the kind of balloon (c) size of the balloon (d) spoons of baking soda
- 6.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 7.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) sugar (d) a funnel or spoon
- 8.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 9.True or false: detergent water is a base. (a) True (b) False
- 10.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) detergent water (d) orange juice
- 11.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
- 12.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) vinegar (d) plain water
- 13.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
- 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the same bottle (c) size of the balloon (d) spoons of baking soda
- 16.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
- 17.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 18.🫧 Which of these is neutral? (a) lemon juice (b) salt water (c) tamarind water (d) orange juice
- 19.True or false: lemon juice is an acid. (a) False (b) True
- 20.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 21.🔮 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
- 22.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 23.⚖️ 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
- 24.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 25.⚖️ 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
- 26.⚖️ 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 kind of balloon (c) spoons of baking soda
- 27.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) a tray for spills (d) sugar
- 28.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
- 29.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) orange juice (d) plain water
- 30.True or false: plain water is neutral. (a) False (b) True
- 31.🫧 Which of these is neutral? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) baking soda (d) a mirror
- 33.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 34.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 35.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
- 36.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 37.True or false: lemon juice is neutral. (a) True (b) False
- 38.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
- 39.🫧 Which of these is an acid? (a) salt water (b) plain water (c) detergent water (d) curd
- 40.⚖️ 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 keep it the same (c) we change it
Answer key
- neutral
- not needed
- rinse with clean water
- we change it
- spoons of baking soda
- True
- a funnel or spoon
- a base
- True
- detergent water
- True
- vinegar
- not needed
- keep it away from eyes
- size of the balloon
- needed
- needed
- salt water
- True
- an acid
- very little fizzing
- False
- we keep it the same
- False
- we keep it the same
- the kind of balloon
- a tray for spills
- gas is made inside
- plain water
- True
- plain water
- a mirror
- a base
- needed
- lots of fizzy bubbles
- needed
- False
- sugar water
- curd
- we measure it
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids