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