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 a base? (a) lemon juice (b) tamarind water (c) orange juice (d) soap solution
- 2.🧺 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
- 3.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
- 5.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 6.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
- 8.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
- 10.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
- 11.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
- 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 13.🫧 Which of these is neutral? (a) curd (b) sugar water (c) lemon juice (d) detergent water
- 14.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
- 15.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 16.⚖️ 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
- 17.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
- 18.⚖️ 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 measure it (c) we keep it the same
- 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
- 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 21.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a balloon (c) an empty bottle (d) baking soda
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the amount of vinegar
- 23.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 24.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 25.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
- 26.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
- 27.⚖️ 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
- 28.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) a seed (d) a mirror
- 29.⚖️ 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
- 30.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 31.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
- 32.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a seed (c) a magnet (d) a mirror
- 33.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) a tray for spills (d) a mirror
- 35.True or false: tamarind water is an acid. (a) False (b) True
- 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
- 37.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a seed (d) a tray for spills
- 38.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a magnet (d) a comb
- 39.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
- 40.True or false: baking soda water is neutral. (a) False (b) True
Answer key
- soap solution
- sugar
- rinse with clean water
- True
- True
- neutral
- we measure it
- needed
- the amount of vinegar
- keep it away from eyes
- False
- an acid
- sugar water
- they react
- needed
- False
- True
- we keep it the same
- very little fizzing
- needed
- a comb
- spoons of baking soda
- an acid
- neutral
- True
- yes, a new gas forms
- False
- an empty bottle
- True
- not needed
- False
- a funnel or spoon
- a base
- a mirror
- True
- True
- a tray for spills
- a balloon
- True
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids