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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
- 2.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 3.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 4.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 5.⚖️ 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 amount of vinegar
- 6.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 7.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they freeze (d) they react
- 8.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
- 9.🫧 Which of these is an acid? (a) vinegar (b) baking soda water (c) sugar water (d) plain water
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
- 11.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 12.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
- 14.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a balloon (d) a tray for spills
- 15.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
- 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
- 17.True or false: salt water is neutral. (a) True (b) False
- 18.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 19.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 20.True or false: soap solution is an acid. (a) False (b) True
- 21.True or false: orange juice is a base. (a) False (b) True
- 22.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 23.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
- 24.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) plain water (d) orange juice
- 25.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 26.True or false: lemon juice is a base. (a) False (b) True
- 27.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
- 28.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
- 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
- 30.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) baking soda (d) a mirror
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a funnel or spoon (c) a balloon (d) an empty bottle
- 33.True or false: plain water is neutral. (a) True (b) False
- 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
- 36.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) a funnel or spoon (d) baking soda
- 37.True or false: detergent water is neutral. (a) True (b) False
- 38.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
- 39.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 40.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
Answer key
- False
- an acid
- an acid
- True
- the amount of vinegar
- True
- they react
- False
- vinegar
- we keep it the same
- True
- not needed
- we keep it the same
- a mirror
- False
- True
- True
- not needed
- an acid
- False
- False
- a base
- True
- plain water
- needed
- False
- it grows bigger
- keep it away from eyes
- we change it
- neutral
- a mirror
- a battery cell
- True
- False
- True
- a comb
- False
- False
- False
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids