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 magnet for the fizzy balloon? (a) not needed (b) needed
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) baking soda (d) a funnel or spoon
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) vinegar (d) an empty bottle
- 4.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a comb (d) vinegar
- 5.🔮 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
- 6.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) vinegar (d) curd
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
- 8.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 9.⚖️ 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 amount of vinegar (d) the same bottle
- 10.True or false: detergent water is a base. (a) True (b) False
- 11.🫧 Which of these is an acid? (a) tamarind water (b) sugar water (c) salt water (d) soap solution
- 12.🫧 Which of these is neutral? (a) tamarind water (b) vinegar (c) orange juice (d) sugar water
- 13.🫧 Which of these is an acid? (a) orange juice (b) baking soda water (c) sugar water (d) soap solution
- 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
- 15.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 16.⚖️ 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
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
- 18.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) orange juice (d) salt water
- 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
- 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
- 21.True or false: soap solution is neutral. (a) True (b) False
- 22.True or false: baking soda water is an acid. (a) True (b) False
- 23.⚖️ 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) the same bottle (d) size of the balloon
- 24.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) a magnet (d) a comb
- 25.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) nothing at all (d) it glows in the dark
- 26.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they become magnets (d) they freeze
- 27.⚖️ 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
- 28.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) plain water (d) curd
- 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a funnel or spoon (d) a mirror
- 30.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 31.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 32.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
- 33.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
- 34.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) curd (d) salt water
- 35.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 36.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 37.True or false: salt water is a base. (a) True (b) False
- 38.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 39.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) a mirror (d) baking soda
- 40.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
Answer key
- not needed
- a seed
- a comb
- vinegar
- an ingredient ran out
- detergent water
- True
- neutral
- spoons of baking soda
- True
- tamarind water
- sugar water
- orange juice
- we keep it the same
- needed
- we measure it
- we keep it the same
- orange juice
- keep it away from eyes
- we change it
- False
- False
- size of the balloon
- a tray for spills
- lots of fizzy bubbles
- they react
- True
- curd
- a mirror
- not needed
- False
- False
- very little fizzing
- curd
- an acid
- not needed
- False
- a base
- baking soda
- needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids