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