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? True or false: the same bottle is the one thing we change. (a) True (b) False
- 2.⚖️ 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 change it (c) we measure it
- 3.True or false: lemon juice is neutral. (a) True (b) False
- 4.🔍 Which is the odd one out? (a) orange juice (b) sugar water (c) salt water (d) plain water
- 5.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 6.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 7.🫧 Which of these is an acid? (a) soap solution (b) lemon juice (c) baking soda water (d) plain water
- 8.🛟 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
- 9.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
- 10.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 11.True or false: tamarind water is an acid. (a) True (b) False
- 12.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 13.🔍 Which is the odd one out? (a) curd (b) plain water (c) salt water (d) sugar water
- 14.🫧 Which of these is neutral? (a) detergent water (b) soap solution (c) vinegar (d) salt water
- 15.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 16.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 17.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 18.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 19.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) vinegar (d) lemon juice
- 20.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 21.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
- 22.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) sugar (c) a balloon (d) baking soda
- 23.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) vinegar (d) a magnet
- 24.🫧 Which of these is a base? (a) soap solution (b) vinegar (c) orange juice (d) curd
- 25.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
- 26.True or false: vinegar is an acid. (a) True (b) False
- 27.🫧 Which of these is a base? (a) curd (b) lemon juice (c) sugar water (d) baking soda water
- 28.⚖️ 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
- 29.True or false: soap solution is an acid. (a) False (b) True
- 30.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 31.⚖️ 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
- 32.⚖️ 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 amount of vinegar (d) size of the balloon
- 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) an empty bottle (d) a battery cell
- 34.⚖️ 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
- 35.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 36.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a magnet (d) a seed
- 37.⚖️ 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 same bottle (c) the amount of vinegar (d) spoons of baking soda
- 38.True or false: baking soda water is an acid. (a) True (b) False
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
- 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) a balloon (d) baking soda
Answer key
- False
- we measure it
- False
- orange juice
- neutral
- needed
- lemon juice
- keep it away from eyes
- True
- not needed
- True
- False
- curd
- salt water
- needed
- an acid
- True
- True
- plain water
- needed
- True
- sugar
- a magnet
- soap solution
- True
- True
- baking soda water
- False
- False
- False
- we keep it the same
- size of the balloon
- a battery cell
- True
- False
- vinegar
- spoons of baking soda
- False
- the kind of balloon
- a magnet
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids