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