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: a mirror is not needed for the fizzy balloon. (a) False (b) True
- 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) the amount of vinegar (d) size of the balloon
- 3.True or false: baking soda water is a base. (a) True (b) False
- 4.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
- 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a balloon (c) an empty bottle (d) baking soda
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) baking soda (d) sugar
- 7.🫧 Which of these is neutral? (a) detergent water (b) baking soda water (c) vinegar (d) salt water
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
- 9.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a battery cell (d) baking soda
- 10.True or false: baking soda water is an acid. (a) False (b) True
- 11.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) curd
- 12.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 13.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
- 14.True or false: lemon juice is an acid. (a) False (b) True
- 15.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 16.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
- 17.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 18.⚖️ 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 kind of balloon (c) spoons of baking soda
- 19.True or false: tamarind water is a base. (a) True (b) False
- 20.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 21.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 22.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
- 23.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a battery cell (d) a mirror
- 24.True or false: detergent water is a base. (a) True (b) False
- 25.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a battery cell (d) baking soda
- 26.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) tamarind water (d) sugar water
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
- 28.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) lemon juice (d) orange juice
- 29.True or false: plain water is neutral. (a) False (b) True
- 30.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 31.🔍 Which is the odd one out? (a) orange juice (b) soap solution (c) curd (d) lemon juice
- 32.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a tray for spills (d) a seed
- 33.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a mirror (d) vinegar
- 35.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) plain water (d) detergent water
- 36.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 37.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 38.⚖️ 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 measure it (c) we change it
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the same bottle
- 40.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
Answer key
- True
- size of the balloon
- True
- an ingredient ran out
- a seed
- sugar
- salt water
- we change it
- baking soda
- False
- curd
- an acid
- they react
- True
- True
- very little fizzing
- a base
- the kind of balloon
- False
- True
- needed
- keep it away from eyes
- vinegar
- True
- a battery cell
- sugar water
- True
- plain water
- True
- neutral
- soap solution
- a seed
- True
- a mirror
- plain water
- not needed
- False
- we measure it
- spoons of baking soda
- needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids