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