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