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