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 magnet for the fizzy balloon? (a) not needed (b) needed
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) vinegar (d) a funnel or spoon
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 4.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
- 5.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) soap solution (d) detergent water
- 6.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) the kind of balloon (d) spoons of baking soda
- 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) a tray for spills (d) baking soda
- 9.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) a funnel or spoon (d) a balloon
- 10.True or false: vinegar is an acid. (a) True (b) False
- 11.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) plain water (d) salt water
- 12.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
- 13.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a battery cell (c) a mirror (d) a seed
- 14.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a seed (d) an empty bottle
- 15.⚖️ 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 kind of balloon (c) size of the balloon
- 16.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 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.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 19.🔮 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
- 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a comb (d) a tray for spills
- 21.🫧 Which of these is a base? (a) curd (b) vinegar (c) baking soda water (d) sugar water
- 22.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a magnet (d) baking soda
- 23.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a seed (c) a magnet (d) a mirror
- 24.True or false: detergent water is a base. (a) False (b) True
- 25.True or false: orange juice is a base. (a) False (b) True
- 26.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a comb (d) vinegar
- 27.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) soap solution (d) salt water
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
- 29.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 30.🫧 Which of these is neutral? (a) tamarind water (b) sugar water (c) vinegar (d) orange juice
- 31.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 32.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) baking soda water (d) lemon juice
- 33.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a magnet (d) a battery cell
- 34.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
- 36.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 37.⚖️ 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
- 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
- 39.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 40.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
Answer key
- not needed
- a mirror
- False
- an ingredient ran out
- plain water
- True
- size of the balloon
- sugar
- sugar
- True
- tamarind water
- gas is made inside
- a funnel or spoon
- an empty bottle
- the kind of balloon
- True
- yes, a new gas forms
- a base
- very little fizzing
- a comb
- baking soda water
- baking soda
- a tray for spills
- True
- False
- a comb
- soap solution
- the amount of vinegar
- not needed
- sugar water
- an acid
- lemon juice
- a balloon
- False
- we change it
- an acid
- the same bottle
- False
- an acid
- lots of fizzy bubbles
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