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) an empty bottle (b) a funnel or spoon (c) a battery cell (d) baking soda
- 2.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
- 3.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) tamarind water
- 4.🫧 Which of these is an acid? (a) baking soda water (b) vinegar (c) sugar water (d) soap solution
- 5.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
- 6.🔮 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
- 7.⚖️ 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
- 8.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) the bottle shrinks (d) vinegar is hot
- 9.🫧 Which of these is neutral? (a) plain water (b) detergent water (c) lemon juice (d) soap solution
- 10.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) baking soda (d) a mirror
- 12.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a tray for spills (c) a comb (d) a magnet
- 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) spoons of baking soda
- 14.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) vinegar (c) a mirror (d) a seed
- 15.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 16.True or false: soap solution is neutral. (a) False (b) True
- 17.True or false: lemon juice is an acid. (a) False (b) True
- 18.True or false: salt water is neutral. (a) True (b) False
- 19.🫧 Which of these is a base? (a) detergent water (b) curd (c) plain water (d) tamarind water
- 20.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) baking soda (d) an empty bottle
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
- 22.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 23.🔍 Which is the odd one out? (a) salt water (b) plain water (c) vinegar (d) sugar water
- 24.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) orange juice (d) salt water
- 25.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
- 26.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
- 27.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) orange juice (d) plain water
- 28.🔍 Which is the odd one out? (a) curd (b) soap solution (c) vinegar (d) lemon juice
- 29.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
- 30.⚖️ 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
- 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
- 32.🫧 Which of these is neutral? (a) lemon juice (b) orange juice (c) sugar water (d) soap solution
- 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
- 34.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 35.⚖️ 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
- 36.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
- 38.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
- 39.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 40.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they freeze (d) they react
Answer key
- a battery cell
- rinse with clean water
- tamarind water
- vinegar
- False
- it grows bigger
- the amount of vinegar
- gas is made inside
- plain water
- neutral
- a mirror
- a tray for spills
- spoons of baking soda
- vinegar
- not needed
- False
- True
- True
- detergent water
- sugar
- False
- not needed
- vinegar
- orange juice
- carbon dioxide
- keep it away from eyes
- orange juice
- soap solution
- False
- False
- we measure it
- sugar water
- True
- False
- False
- not needed
- False
- True
- needed
- they react
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids