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.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 2.🫧 Which of these is an acid? (a) salt water (b) curd (c) plain water (d) soap solution
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the amount of vinegar
- 4.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) sugar water (d) plain water
- 5.🔍 Which is the odd one out? (a) orange juice (b) plain water (c) curd (d) tamarind water
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a balloon (c) a funnel or spoon (d) an empty bottle
- 7.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 8.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
- 9.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) baking soda water
- 10.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 11.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
- 12.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 13.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) oxygen (d) hydrogen
- 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) a mirror (d) vinegar
- 15.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
- 16.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 17.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 18.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
- 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a tray for spills (c) an empty bottle (d) a funnel or spoon
- 20.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
- 21.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 22.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a mirror (d) a balloon
- 23.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
- 24.⚖️ 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
- 25.True or false: vinegar is neutral. (a) True (b) False
- 26.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 27.⚖️ 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
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
- 29.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 30.🫧 Which of these is an acid? (a) detergent water (b) lemon juice (c) sugar water (d) soap solution
- 31.True or false: sugar water is a base. (a) False (b) True
- 32.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
- 33.True or false: plain water is neutral. (a) True (b) False
- 34.True or false: baking soda water is a base. (a) True (b) False
- 35.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
- 36.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 37.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
- 38.🫧 Which of these is a base? (a) vinegar (b) plain water (c) baking soda water (d) lemon juice
- 39.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) soap solution (d) detergent water
- 40.True or false: orange juice is a base. (a) True (b) False
Answer key
- needed
- curd
- size of the balloon
- orange juice
- plain water
- a magnet
- True
- lots of fizzy bubbles
- baking soda water
- not needed
- gas is made inside
- not needed
- carbon dioxide
- a mirror
- an ingredient ran out
- False
- needed
- it grows bigger
- a battery cell
- rinse with clean water
- False
- a mirror
- very little fizzing
- the amount of vinegar
- False
- not needed
- True
- we keep it the same
- False
- lemon juice
- False
- False
- True
- True
- False
- True
- keep it away from eyes
- baking soda water
- salt water
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids