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