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 of these is an acid? (a) lemon juice (b) baking soda water (c) soap solution (d) salt water
- 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
- 3.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) baking soda (c) a magnet (d) a battery cell
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
- 5.⚖️ 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
- 6.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 7.⚖️ 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 measure it (c) we keep it the same
- 8.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) vinegar (d) a mirror
- 10.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 11.True or false: orange juice is a base. (a) False (b) True
- 12.True or false: soap solution is a base. (a) True (b) False
- 13.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 14.True or false: lemon juice is neutral. (a) True (b) False
- 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) a balloon (d) vinegar
- 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a funnel or spoon (d) a comb
- 17.True or false: tamarind water is an acid. (a) False (b) True
- 18.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
- 19.⚖️ 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 change it (c) we measure it
- 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
- 21.True or false: baking soda water is an acid. (a) True (b) False
- 22.True or false: detergent water is a base. (a) False (b) True
- 23.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a battery cell (d) a comb
- 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a battery cell (d) a funnel or spoon
- 25.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) the balloon got cold (d) an ingredient ran out
- 26.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 27.⚖️ 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
- 28.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
- 29.⚖️ 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
- 30.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 31.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 32.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) add baking soda (d) rub it hard
- 33.⚖️ 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
- 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a funnel or spoon (d) sugar
- 35.🔍 Which is the odd one out? (a) baking soda water (b) orange juice (c) curd (d) vinegar
- 36.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 37.🫧 Which of these is a base? (a) sugar water (b) baking soda water (c) tamarind water (d) vinegar
- 38.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) sugar water (d) curd
- 39.True or false: salt water is neutral. (a) False (b) True
- 40.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) orange juice (d) lemon juice
Answer key
- lemon juice
- keep it away from eyes
- baking soda
- the amount of vinegar
- True
- needed
- we measure it
- False
- a mirror
- True
- False
- True
- needed
- False
- a magnet
- a comb
- True
- gas is made inside
- we keep it the same
- size of the balloon
- False
- True
- vinegar
- a battery cell
- an ingredient ran out
- a base
- True
- lots of fizzy bubbles
- False
- an acid
- neutral
- rinse with clean water
- False
- sugar
- baking soda water
- True
- baking soda water
- sugar water
- True
- soap solution
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids