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