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