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.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 2.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 3.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 4.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) sugar (d) a funnel or spoon
- 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) vinegar (d) an empty bottle
- 6.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) salt water
- 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
- 8.🔍 Which is the odd one out? (a) orange juice (b) detergent water (c) vinegar (d) tamarind water
- 9.⚖️ 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
- 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
- 11.True or false: curd is neutral. (a) True (b) False
- 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
- 13.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
- 14.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 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.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) plain water (d) sugar water
- 17.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) vinegar (d) a magnet
- 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a magnet (d) baking soda
- 19.🔍 Which is the odd one out? (a) plain water (b) lemon juice (c) orange juice (d) tamarind water
- 20.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 21.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 22.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 23.⚖️ 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) spoons of baking soda (d) the same bottle
- 24.⚖️ 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
- 25.🛟 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
- 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a comb (c) a tray for spills (d) an empty bottle
- 27.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a battery cell (d) an empty bottle
- 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a funnel or spoon (d) a seed
- 29.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
- 31.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 32.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
- 33.⚖️ 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
- 34.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) orange juice
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
- 36.⚖️ 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
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
- 38.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
- 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
Answer key
- a base
- an acid
- not needed
- a funnel or spoon
- sugar
- salt water
- keep it away from eyes
- detergent water
- True
- it grows bigger
- False
- we keep it the same
- not needed
- needed
- False
- baking soda water
- vinegar
- a magnet
- plain water
- an acid
- needed
- an acid
- spoons of baking soda
- True
- rinse with clean water
- a comb
- a battery cell
- a seed
- not needed
- the same bottle
- needed
- carbon dioxide
- True
- orange juice
- False
- False
- False
- needed
- False
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids