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.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a comb (c) a funnel or spoon (d) a balloon
- 3.True or false: detergent water is a base. (a) True (b) False
- 4.🫧 Which of these is a base? (a) baking soda water (b) plain water (c) vinegar (d) orange juice
- 5.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 6.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 7.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) vinegar (d) salt water
- 8.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 9.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 10.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) soap solution (d) plain water
- 11.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 12.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
- 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
- 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
- 15.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 16.⚖️ 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 keep it the same (c) we change it
- 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a magnet (d) an empty bottle
- 18.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
- 19.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) baking soda water (d) orange juice
- 20.True or false: curd is an acid. (a) False (b) True
- 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it shrinks (d) it grows bigger
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
- 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
- 24.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 25.🫧 Which of these is a base? (a) vinegar (b) lemon juice (c) soap solution (d) sugar water
- 26.True or false: baking soda water is a base. (a) False (b) True
- 27.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 28.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) vinegar (c) a tray for spills (d) a balloon
- 29.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 30.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
- 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a battery cell (d) a balloon
- 33.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
- 34.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
- 35.🫧 Which of these is neutral? (a) orange juice (b) plain water (c) baking soda water (d) curd
- 36.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 37.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
- 38.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a comb (c) a seed (d) a mirror
- 39.True or false: salt water is neutral. (a) True (b) False
- 40.True or false: vinegar is a base. (a) False (b) True
Answer key
- needed
- a comb
- True
- baking soda water
- not needed
- not needed
- salt water
- not needed
- True
- soap solution
- needed
- carbon dioxide
- we change it
- False
- not needed
- we measure it
- a magnet
- keep it away from eyes
- baking soda water
- True
- it grows bigger
- size of the balloon
- we keep it the same
- an acid
- soap solution
- True
- a base
- a magnet
- True
- rinse with clean water
- very little fizzing
- a battery cell
- gas is made inside
- False
- plain water
- needed
- True
- a balloon
- True
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids