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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a seed
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) baking soda (d) an empty bottle
- 3.🧺 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) vinegar (d) sugar
- 4.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) salt water (d) sugar water
- 5.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) vinegar (d) a magnet
- 6.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
- 7.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
- 8.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
- 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
- 10.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 11.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) baking soda (d) a magnet
- 12.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 13.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 14.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 15.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
- 16.🔍 Which is the odd one out? (a) curd (b) vinegar (c) orange juice (d) detergent water
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
- 18.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 19.⚖️ 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
- 20.⚖️ 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
- 21.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) vinegar (d) a battery cell
- 22.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) salt water (d) detergent water
- 23.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they freeze (d) they float apart
- 25.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
- 26.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) a comb (d) a funnel or spoon
- 27.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
- 28.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 29.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) baking soda water (d) lemon juice
- 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
- 31.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle
- 33.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 34.🔍 Which is the odd one out? (a) plain water (b) salt water (c) baking soda water (d) sugar water
- 35.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
- 36.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) vinegar (d) soap solution
- 37.True or false: baking soda water is a base. (a) False (b) True
- 38.⚖️ 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
- 39.True or false: detergent water is a base. (a) False (b) True
- 40.⚖️ 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
Answer key
- a seed
- a magnet
- sugar
- vinegar
- a magnet
- rinse with clean water
- an ingredient ran out
- gas is made inside
- very little fizzing
- an acid
- baking soda
- False
- not needed
- a base
- it grows bigger
- detergent water
- we keep it the same
- a base
- we keep it the same
- True
- a battery cell
- salt water
- an acid
- they react
- True
- a funnel or spoon
- False
- an acid
- lemon juice
- the amount of vinegar
- False
- the same bottle
- needed
- baking soda water
- not needed
- soap solution
- True
- the kind of balloon
- True
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids