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 safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
- 2.True or false: orange juice is neutral. (a) True (b) False
- 3.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
- 4.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 5.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 6.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a battery cell (d) an empty bottle
- 7.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) it is only melting (d) yes, a new gas forms
- 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) an empty bottle (d) a seed
- 9.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
- 11.⚖️ 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) size of the balloon (c) the same bottle (d) spoons of baking soda
- 12.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 13.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
- 14.🔍 Which is the odd one out? (a) curd (b) soap solution (c) lemon juice (d) tamarind water
- 15.🔮 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
- 16.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) orange juice (d) tamarind water
- 17.⚖️ 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) True (b) False
- 18.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 19.True or false: baking soda water is neutral. (a) True (b) False
- 20.True or false: soap solution is an acid. (a) True (b) False
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
- 22.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a seed (d) baking soda
- 23.⚖️ 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
- 24.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
- 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a magnet (d) a balloon
- 26.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 27.True or false: tamarind water is a base. (a) True (b) False
- 28.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 29.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) an empty bottle (d) a tray for spills
- 31.🫧 Which of these is neutral? (a) vinegar (b) baking soda water (c) sugar water (d) lemon juice
- 32.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
- 33.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 34.⚖️ 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
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon
- 36.⚖️ 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) False (b) True
- 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a balloon (c) vinegar (d) a funnel or spoon
- 38.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a magnet (d) a tray for spills
- 39.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 40.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
Answer key
- keep it away from eyes
- False
- carbon dioxide
- needed
- needed
- an empty bottle
- yes, a new gas forms
- a seed
- not needed
- we change it
- spoons of baking soda
- not needed
- rinse with clean water
- soap solution
- an ingredient ran out
- baking soda water
- False
- an acid
- False
- False
- False
- baking soda
- we measure it
- lots of fizzy bubbles
- a magnet
- True
- False
- not needed
- True
- sugar
- sugar water
- False
- not needed
- True
- the kind of balloon
- True
- a comb
- a magnet
- True
- salt water
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids