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? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
- 2.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
- 3.⚖️ 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
- 4.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) tamarind water (d) curd
- 5.True or false: tamarind water is a base. (a) False (b) True
- 6.⚖️ 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 keep it the same (c) we measure it
- 7.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
- 8.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 9.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 10.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) vinegar (d) sugar
- 14.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) vinegar (d) plain water
- 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
- 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
- 17.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a magnet (d) a balloon
- 18.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) baking soda water (d) detergent water
- 19.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 20.⚖️ 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
- 21.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 22.⚖️ 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 kind of balloon (c) spoons of baking soda
- 23.🫧 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
- 24.True or false: detergent water is a base. (a) False (b) True
- 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) vinegar (d) baking soda
- 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a tray for spills (d) a mirror
- 27.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) the bottle got tired (d) an ingredient ran out
- 28.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) sugar (d) a battery cell
- 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a funnel or spoon (d) a balloon
- 30.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
- 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) a tray for spills (d) a balloon
- 33.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a comb (c) a mirror (d) a battery cell
- 34.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
- 35.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 36.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 37.True or false: orange juice is an acid. (a) True (b) False
- 38.⚖️ 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) True (b) False
- 39.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
Answer key
- True
- True
- True
- soap solution
- False
- we measure it
- it grows bigger
- neutral
- an acid
- an acid
- not needed
- an acid
- sugar
- vinegar
- we keep it the same
- keep it away from eyes
- a balloon
- sugar water
- not needed
- we keep it the same
- not needed
- the kind of balloon
- lots of fizzy bubbles
- True
- a battery cell
- a mirror
- an ingredient ran out
- vinegar
- a seed
- False
- very little fizzing
- a comb
- baking soda
- True
- needed
- needed
- True
- False
- True
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids