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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
- 2.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 3.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 4.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) sugar water (d) orange juice
- 5.🛟 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
- 6.⚖️ 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
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the amount of vinegar (c) the same bottle (d) spoons of baking soda
- 8.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a balloon (c) sugar (d) a battery cell
- 9.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) an empty bottle (c) a mirror (d) a funnel or spoon
- 10.🛟 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
- 11.🫧 Which of these is an acid? (a) plain water (b) sugar water (c) soap solution (d) vinegar
- 12.⚖️ 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
- 13.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
- 14.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) vinegar (d) tamarind water
- 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) vinegar (d) a seed
- 16.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) nothing at all (d) it turns to ice
- 17.🔮 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
- 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) sugar (d) a balloon
- 19.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 21.🫧 Which of these is an acid? (a) plain water (b) salt water (c) curd (d) baking soda water
- 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) a balloon (d) an empty bottle
- 23.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 24.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) vinegar (c) a balloon (d) a funnel or spoon
- 25.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
- 26.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) tamarind water (d) soap solution
- 27.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
- 28.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) curd
- 29.🔮 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
- 30.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
- 31.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 32.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a seed (c) sugar (d) a comb
- 33.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 34.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) an empty bottle (d) a tray for spills
- 35.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 36.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) tamarind water (d) orange juice
- 37.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 38.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the kind of balloon (c) size of the balloon (d) the same bottle
- 40.🫧 Which of these is neutral? (a) curd (b) vinegar (c) lemon juice (d) plain water
Answer key
- False
- a base
- an acid
- orange juice
- rinse with clean water
- False
- spoons of baking soda
- a balloon
- a mirror
- keep it away from eyes
- vinegar
- True
- True
- salt water
- a seed
- lots of fizzy bubbles
- it grows bigger
- sugar
- not needed
- needed
- curd
- a mirror
- needed
- a magnet
- False
- soap solution
- needed
- curd
- very little fizzing
- an ingredient ran out
- needed
- vinegar
- False
- a comb
- needed
- baking soda water
- not needed
- an acid
- size of the balloon
- plain water
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids