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: a mirror is not needed for the fizzy balloon. (a) False (b) True
- 2.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
- 3.🫧 Which of these is a base? (a) sugar water (b) orange juice (c) lemon juice (d) baking soda water
- 4.True or false: vinegar is a base. (a) False (b) True
- 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we keep it the same (c) we change it
- 6.🔍 Which is the odd one out? (a) plain water (b) salt water (c) vinegar (d) sugar water
- 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a magnet (c) a funnel or spoon (d) a balloon
- 8.🔍 Which is the odd one out? (a) plain water (b) salt water (c) tamarind water (d) sugar water
- 9.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 10.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
- 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar (d) the same bottle
- 12.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) seal it in a glass jar (d) keep it away from eyes
- 13.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 14.🔍 Which is the odd one out? (a) orange juice (b) tamarind water (c) vinegar (d) detergent water
- 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a comb (d) a balloon
- 16.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 17.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 18.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) salt water (d) curd
- 19.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 20.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) the balloon bursts (d) it turns to honey
- 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.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
- 23.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
- 24.⚖️ 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 measure it (c) we change it
- 25.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 26.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
- 27.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) plain water (d) salt water
- 28.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 29.True or false: sugar water is neutral. (a) True (b) False
- 30.⚖️ 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
- 31.True or false: orange juice is a base. (a) True (b) False
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) sugar
- 33.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) baking soda (d) a comb
- 34.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
- 35.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) soap solution (d) detergent water
- 36.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) lemon juice
- 37.🫧 Which of these is an acid? (a) lemon juice (b) sugar water (c) salt water (d) plain water
- 38.🫧 Which of these is a base? (a) detergent water (b) salt water (c) tamarind water (d) curd
- 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) baking soda (d) a funnel or spoon
- 40.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
Answer key
- True
- sugar water
- baking soda water
- False
- we keep it the same
- vinegar
- a magnet
- tamarind water
- a base
- rinse with clean water
- size of the balloon
- keep it away from eyes
- False
- detergent water
- a comb
- not needed
- True
- curd
- needed
- very little fizzing
- the same bottle
- needed
- gas is made inside
- we keep it the same
- needed
- they react
- baking soda water
- an acid
- True
- the amount of vinegar
- False
- sugar
- a comb
- True
- orange juice
- lemon juice
- lemon juice
- detergent water
- a seed
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids