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