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