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 balloon is not needed for the fizzy balloon. (a) False (b) True
- 2.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) an empty bottle (d) a mirror
- 3.🔮 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
- 4.True or false: detergent water is a base. (a) False (b) True
- 5.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 6.⚖️ 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 measure it (c) we change it
- 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) vinegar (c) a tray for spills (d) an empty bottle
- 8.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
- 9.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 10.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 11.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 12.⚖️ 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
- 13.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 14.🔮 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
- 15.🫧 Which of these is neutral? (a) salt water (b) soap solution (c) orange juice (d) lemon juice
- 16.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
- 17.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
- 19.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a seed (d) a tray for spills
- 20.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
- 22.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) helium (d) oxygen
- 23.True or false: soap solution is an acid. (a) False (b) True
- 24.⚖️ 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 amount of vinegar (c) the kind of balloon (d) the same bottle
- 25.🫧 Which of these is neutral? (a) tamarind water (b) orange juice (c) curd (d) sugar water
- 26.🛟 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
- 27.⚖️ 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
- 28.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 29.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
- 30.True or false: sugar water is a base. (a) True (b) False
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a tray for spills (c) a balloon (d) vinegar
- 32.🫧 Which of these is a base? (a) tamarind water (b) vinegar (c) lemon juice (d) detergent water
- 33.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 34.True or false: sugar water is neutral. (a) False (b) True
- 35.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) orange juice
- 36.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 37.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
- 38.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
- 39.True or false: baking soda water is an acid. (a) False (b) True
- 40.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a comb (c) a seed (d) a mirror
Answer key
- False
- a mirror
- very little fizzing
- True
- False
- we keep it the same
- a seed
- yes, a new gas forms
- neutral
- a base
- not needed
- False
- True
- it grows bigger
- salt water
- lots of fizzy bubbles
- True
- True
- a seed
- an acid
- True
- carbon dioxide
- False
- spoons of baking soda
- sugar water
- keep it away from eyes
- we keep it the same
- not needed
- True
- False
- a comb
- detergent water
- a base
- True
- orange juice
- neutral
- gas is made inside
- tamarind water
- False
- a funnel or spoon
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids