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