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