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