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.
NameDateTime takenScore ___ / 40
- 1.True or false: plain water is neutral. (a) False (b) True
- 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) a tray for spills (d) an empty bottle
- 4.⚖️ 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 keep it the same (c) we change it
- 5.⚖️ 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
- 6.⚖️ 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) False (b) True
- 7.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 8.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) a comb (d) a seed
- 9.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a tray for spills (d) a battery cell
- 10.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) detergent water (d) soap solution
- 11.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) vinegar (d) soap solution
- 12.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 13.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 14.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) hydrogen (d) helium
- 15.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) a funnel or spoon (d) baking soda
- 16.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 17.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) sugar (c) a mirror (d) baking soda
- 18.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 19.⚖️ 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) the same bottle (c) the kind of balloon (d) spoons of baking soda
- 20.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a seed (d) vinegar
- 21.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 22.True or false: soap solution is a base. (a) False (b) True
- 23.True or false: curd is an acid. (a) True (b) False
- 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a tray for spills (d) a comb
- 25.🔍 Which is the odd one out? (a) vinegar (b) curd (c) sugar water (d) orange juice
- 26.🫧 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
- 27.🫧 Which of these is a base? (a) baking soda water (b) salt water (c) orange juice (d) curd
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
- 29.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
- 30.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
- 31.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
- 32.⚖️ 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
- 33.🫧 Which of these is neutral? (a) baking soda water (b) plain water (c) orange juice (d) soap solution
- 34.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) curd (d) lemon juice
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
- 36.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 37.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a mirror (d) a balloon
- 38.True or false: soap solution is an acid. (a) False (b) True
- 39.⚖️ 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
- 40.True or false: detergent water is an acid. (a) False (b) True
Answer key
- True
- the amount of vinegar
- a magnet
- we keep it the same
- False
- False
- not needed
- a tray for spills
- a battery cell
- vinegar
- vinegar
- not needed
- an acid
- carbon dioxide
- a comb
- an acid
- baking soda
- True
- spoons of baking soda
- vinegar
- True
- True
- True
- a comb
- sugar water
- lots of fizzy bubbles
- baking soda water
- True
- gas is made inside
- rinse with clean water
- keep it away from eyes
- True
- plain water
- detergent water
- True
- needed
- a mirror
- False
- we change it
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids