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