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? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon
- 2.⚖️ 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) the same bottle (d) size of the balloon
- 3.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 4.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
- 5.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
- 6.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 7.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 8.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
- 9.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a battery cell (d) baking soda
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
- 11.True or false: curd is neutral. (a) True (b) False
- 12.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
- 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) baking soda (d) a balloon
- 14.⚖️ 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
- 15.🔮 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 shrinks (d) it grows bigger
- 16.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 17.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
- 18.⚖️ 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
- 19.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 20.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 21.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) sugar water (d) baking soda water
- 22.True or false: vinegar is an acid. (a) True (b) False
- 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
- 24.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
- 25.⚖️ 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 change it (c) we keep it the same
- 26.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 27.True or false: detergent water is an acid. (a) True (b) False
- 28.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 29.True or false: plain water is a base. (a) True (b) False
- 30.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 31.🛟 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
- 32.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 33.⚖️ 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 change it (c) we keep it the same
- 34.🔍 Which is the odd one out? (a) tamarind water (b) orange juice (c) vinegar (d) soap solution
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
- 36.True or false: detergent water is neutral. (a) False (b) True
- 37.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) curd (d) baking soda water
- 38.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 39.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a magnet (d) a tray for spills
Answer key
- the kind of balloon
- size of the balloon
- not needed
- they react
- False
- not needed
- not needed
- carbon dioxide
- baking soda
- True
- False
- plain water
- a mirror
- True
- it grows bigger
- not needed
- lots of fizzy bubbles
- False
- an acid
- False
- baking soda water
- True
- False
- keep it away from eyes
- we keep it the same
- True
- False
- an acid
- False
- a base
- rinse with clean water
- needed
- we keep it the same
- soap solution
- we change it
- False
- curd
- neutral
- needed
- a magnet
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids