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