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