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