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.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a battery cell (d) a tray for spills
- 2.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
- 3.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
- 4.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) baking soda (d) sugar
- 5.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
- 6.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) orange juice (d) detergent water
- 7.True or false: vinegar is a base. (a) True (b) False
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda (d) the same bottle
- 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a comb (d) a balloon
- 10.True or false: vinegar is neutral. (a) False (b) True
- 11.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 12.⚖️ 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) False (b) True
- 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
- 14.True or false: salt water is an acid. (a) False (b) True
- 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.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
- 17.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) yes, a new gas forms (d) it is only dissolving
- 18.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 19.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
- 20.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) lemon juice (d) salt water
- 21.⚖️ 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
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
- 23.🫧 Which of these is neutral? (a) detergent water (b) salt water (c) soap solution (d) vinegar
- 24.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 25.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a magnet (c) baking soda (d) a balloon
- 26.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) an empty bottle (d) a mirror
- 27.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 28.⚖️ 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 change it (c) we keep it the same
- 29.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) oxygen (d) hydrogen
- 30.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 31.True or false: detergent water is a base. (a) True (b) False
- 32.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
- 33.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 34.🧺 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) a seed (d) a balloon
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
- 36.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) plain water (d) sugar water
- 37.🔮 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
- 38.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 39.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) baking soda water
- 40.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
Answer key
- a battery cell
- True
- False
- sugar
- they react
- detergent water
- False
- size of the balloon
- a comb
- False
- True
- True
- keep it away from eyes
- False
- False
- lots of fizzy bubbles
- yes, a new gas forms
- False
- plain water
- lemon juice
- False
- we change it
- salt water
- False
- a magnet
- an empty bottle
- False
- we keep it the same
- carbon dioxide
- not needed
- True
- not needed
- a base
- a seed
- we keep it the same
- tamarind water
- very little fizzing
- an acid
- baking soda water
- False
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