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