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