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