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