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