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