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 “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
- 2.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) sugar (d) a seed
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) an empty bottle (d) a seed
- 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
- 8.True or false: soap solution is an acid. (a) True (b) False
- 9.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a mirror (c) baking soda (d) vinegar
- 10.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
- 11.True or false: detergent water is a base. (a) False (b) True
- 12.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
- 13.🫧 Which of these is neutral? (a) detergent water (b) curd (c) vinegar (d) sugar water
- 14.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 15.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) vinegar (d) orange juice
- 16.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a tray for spills (d) a mirror
- 17.📘 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
- 18.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) lemon juice (d) detergent water
- 19.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
- 20.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 21.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 22.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a seed (d) sugar
- 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) helium (d) oxygen
- 24.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a tray for spills (d) a comb
- 26.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
- 27.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) curd
- 28.🫧 Which of these is a base? (a) soap solution (b) lemon juice (c) sugar water (d) curd
- 29.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
- 30.⚖️ 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
- 31.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 32.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
- 33.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
- 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 35.⚖️ 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
- 36.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
- 37.True or false: baking soda water is a base. (a) True (b) False
- 38.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a comb (c) a balloon (d) vinegar
- 39.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 40.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
Answer key
- we change it
- needed
- False
- size of the balloon
- a funnel or spoon
- a seed
- keep it away from eyes
- False
- a mirror
- they react
- True
- an ingredient ran out
- sugar water
- True
- baking soda water
- a tray for spills
- yes, a new gas forms
- lemon juice
- False
- an acid
- neutral
- baking soda
- carbon dioxide
- an acid
- a comb
- rinse with clean water
- curd
- soap solution
- True
- True
- False
- True
- very little fizzing
- False
- we measure it
- gas is made inside
- True
- a comb
- not needed
- needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids