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