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