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.True or false: curd is a base. (a) False (b) True
- 2.🫧 Which of these is neutral? (a) soap solution (b) lemon juice (c) salt water (d) detergent water
- 3.⚖️ 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
- 4.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) a seed (d) a comb
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a magnet (d) an empty bottle
- 7.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a comb (d) vinegar
- 8.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
- 9.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 10.🛟 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
- 11.🫧 Which of these is a base? (a) tamarind water (b) soap solution (c) curd (d) orange juice
- 12.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 13.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
- 14.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) sugar water (d) curd
- 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) it turns to honey (d) a huge eruption
- 16.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a mirror (d) a comb
- 17.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) curd (d) vinegar
- 18.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 19.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
- 20.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) curd
- 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) True (b) False
- 22.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) a tray for spills (d) a balloon
- 24.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) curd (d) vinegar
- 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) a balloon (d) an empty bottle
- 26.⚖️ 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
- 27.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) salt water (d) sugar water
- 28.⚖️ 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
- 29.True or false: baking soda water is an acid. (a) True (b) False
- 30.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 31.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
- 32.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 33.🔍 Which is the odd one out? (a) curd (b) tamarind water (c) sugar water (d) vinegar
- 34.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a battery cell (d) an empty bottle
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the same bottle (c) the kind of balloon (d) the amount of vinegar
- 36.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
- 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a seed (d) a balloon
- 38.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
- 40.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) lots of fizzy bubbles (c) it turns to ice (d) it glows in the dark
Answer key
- False
- salt water
- we keep it the same
- needed
- a tray for spills
- a magnet
- a comb
- False
- not needed
- keep it away from eyes
- soap solution
- True
- an ingredient ran out
- sugar water
- very little fizzing
- baking soda
- plain water
- a base
- rinse with clean water
- curd
- False
- needed
- sugar
- salt water
- a mirror
- we measure it
- lemon juice
- the amount of vinegar
- False
- an acid
- False
- needed
- sugar water
- an empty bottle
- spoons of baking soda
- carbon dioxide
- a seed
- needed
- True
- lots of fizzy bubbles
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids