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 safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
- 2.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a comb (d) a tray for spills
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a mirror (d) a funnel or spoon
- 4.True or false: detergent water is a base. (a) False (b) True
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) a mirror (d) an empty bottle
- 6.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 8.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 9.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
- 11.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) hydrogen (d) oxygen
- 12.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
- 13.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) baking soda (d) vinegar
- 14.True or false: orange juice is a base. (a) False (b) True
- 15.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) it is only melting (d) yes, a new gas forms
- 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
- 17.True or false: vinegar is an acid. (a) True (b) False
- 18.🔍 Which is the odd one out? (a) curd (b) vinegar (c) lemon juice (d) sugar water
- 19.True or false: detergent water is neutral. (a) False (b) True
- 20.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) sugar (d) an empty bottle
- 21.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 22.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 23.⚖️ 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) False (b) True
- 24.🫧 Which of these is a base? (a) vinegar (b) baking soda water (c) sugar water (d) salt water
- 25.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the kind of balloon
- 26.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) tamarind water
- 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) vinegar (d) a balloon
- 28.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) curd (d) orange juice
- 29.🫧 Which of these is neutral? (a) tamarind water (b) sugar water (c) lemon juice (d) vinegar
- 30.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) soap solution (d) curd
- 31.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 32.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 33.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 34.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
- 35.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 36.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) plain water
- 37.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a comb (d) a funnel or spoon
- 39.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a funnel or spoon (d) a seed
- 40.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
Answer key
- keep it away from eyes
- a tray for spills
- a mirror
- True
- an empty bottle
- a base
- False
- an acid
- a base
- we keep it the same
- carbon dioxide
- True
- a battery cell
- False
- yes, a new gas forms
- it grows bigger
- True
- sugar water
- False
- sugar
- False
- False
- False
- baking soda water
- spoons of baking soda
- tamarind water
- a seed
- baking soda water
- sugar water
- soap solution
- True
- an acid
- not needed
- False
- not needed
- plain water
- they react
- a comb
- a funnel or spoon
- rinse with clean water
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids