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