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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) vinegar (d) a balloon
- 2.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
- 3.⚖️ 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
- 4.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) soap solution (d) curd
- 5.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) vinegar (d) a balloon
- 7.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a battery cell (c) a funnel or spoon (d) baking soda
- 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a funnel or spoon (d) a mirror
- 9.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) baking soda water (d) plain water
- 10.🛟 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
- 11.⚖️ 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
- 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
- 13.True or false: vinegar is a base. (a) True (b) False
- 14.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
- 15.True or false: vinegar is an acid. (a) True (b) False
- 16.⚖️ 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
- 17.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 18.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) sugar (d) vinegar
- 19.True or false: soap solution is a base. (a) False (b) True
- 20.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 21.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) soap solution (d) detergent water
- 22.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 23.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
- 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon (d) the amount of vinegar
- 26.True or false: plain water is an acid. (a) False (b) True
- 27.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) there is no change (c) it turns blue (d) it shrinks
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the same bottle
- 29.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 30.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) vinegar (d) a tray for spills
- 32.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 33.🫧 Which of these is neutral? (a) salt water (b) vinegar (c) tamarind water (d) lemon juice
- 34.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 35.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 36.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 37.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
- 38.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 39.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a magnet (d) a funnel or spoon
- 40.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
Answer key
- a seed
- rinse with clean water
- the amount of vinegar
- soap solution
- an acid
- a magnet
- a battery cell
- a mirror
- baking soda water
- keep it away from eyes
- we measure it
- we keep it the same
- False
- lots of fizzy bubbles
- True
- False
- True
- vinegar
- True
- a base
- sugar water
- False
- not needed
- False
- spoons of baking soda
- False
- it grows bigger
- size of the balloon
- True
- True
- sugar
- not needed
- salt water
- True
- a base
- an acid
- very little fizzing
- needed
- a funnel or spoon
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids