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.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a mirror (d) vinegar
- 4.🫧 Which of these is an acid? (a) baking soda water (b) vinegar (c) sugar water (d) plain water
- 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) a magnet (d) vinegar
- 6.⚖️ 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
- 7.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 8.⚖️ 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 same bottle (c) the amount of vinegar (d) size of the balloon
- 9.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) sugar (d) baking soda
- 10.🫧 Which of these is a base? (a) vinegar (b) sugar water (c) salt water (d) baking soda water
- 11.True or false: curd is an acid. (a) True (b) False
- 12.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a balloon (d) a magnet
- 14.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) salt water (d) sugar water
- 15.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 16.🔍 Which is the odd one out? (a) salt water (b) detergent water (c) baking soda water (d) soap solution
- 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
- 18.⚖️ 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) False (b) True
- 19.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
- 21.🛟 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
- 22.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) curd (d) lemon juice
- 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
- 24.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
- 25.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) a balloon (d) vinegar
- 26.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 27.🫧 Which of these is neutral? (a) baking soda water (b) detergent water (c) orange juice (d) plain water
- 28.True or false: tamarind water is a base. (a) True (b) False
- 29.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
- 30.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a magnet (d) a balloon
- 31.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
- 33.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 34.True or false: orange juice is neutral. (a) False (b) True
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the same bottle (c) the kind of balloon (d) spoons of baking soda
- 36.⚖️ 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
- 37.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 38.🫧 Which of these is a base? (a) vinegar (b) orange juice (c) detergent water (d) sugar water
- 39.🔮 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
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) sugar (d) a funnel or spoon
Answer key
- not needed
- rinse with clean water
- a mirror
- vinegar
- a magnet
- the same bottle
- not needed
- size of the balloon
- baking soda
- baking soda water
- True
- not needed
- a balloon
- lemon juice
- needed
- salt water
- carbon dioxide
- False
- True
- True
- keep it away from eyes
- baking soda water
- False
- needed
- a seed
- neutral
- plain water
- False
- an ingredient ran out
- a magnet
- an acid
- True
- needed
- False
- spoons of baking soda
- False
- needed
- detergent water
- very little fizzing
- sugar
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids