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.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 2.⚖️ 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
- 3.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) sugar (d) a seed
- 4.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 5.True or false: curd is a base. (a) False (b) True
- 6.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a comb (d) vinegar
- 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
- 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) hydrogen (d) helium
- 10.⚖️ 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
- 11.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 12.True or false: tamarind water is a base. (a) True (b) False
- 13.True or false: orange juice is an acid. (a) False (b) True
- 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
- 15.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a tray for spills (d) a comb
- 16.🫧 Which of these is a base? (a) tamarind water (b) sugar water (c) lemon juice (d) detergent water
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) the kind of balloon (d) spoons of baking soda
- 18.🫧 Which of these is a base? (a) baking soda water (b) orange juice (c) salt water (d) plain water
- 19.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 20.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 21.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 22.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 23.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
- 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
- 25.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a comb (d) a funnel or spoon
- 26.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a magnet (c) a mirror (d) sugar
- 27.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) vinegar (d) curd
- 28.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) curd
- 29.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 30.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a mirror (d) vinegar
- 31.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a balloon (d) sugar
- 32.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
- 33.🫧 Which of these is neutral? (a) lemon juice (b) sugar water (c) tamarind water (d) orange juice
- 34.🔍 Which is the odd one out? (a) vinegar (b) curd (c) baking soda water (d) lemon juice
- 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a mirror (c) a tray for spills (d) baking soda
- 36.True or false: vinegar is an acid. (a) False (b) True
- 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a tray for spills (c) baking soda (d) an empty bottle
- 38.⚖️ 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 keep it the same (c) we measure it
- 39.🔍 Which is the odd one out? (a) vinegar (b) sugar water (c) tamarind water (d) curd
- 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) an empty bottle (d) vinegar
Answer key
- needed
- False
- an empty bottle
- False
- False
- needed
- a comb
- very little fizzing
- carbon dioxide
- True
- False
- False
- True
- the same bottle
- a tray for spills
- detergent water
- spoons of baking soda
- baking soda water
- False
- not needed
- True
- a base
- rinse with clean water
- the kind of balloon
- a comb
- vinegar
- soap solution
- curd
- not needed
- a mirror
- a balloon
- lots of fizzy bubbles
- sugar water
- baking soda water
- a mirror
- True
- a battery cell
- we keep it the same
- sugar water
- sugar
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids