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 not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a mirror (d) a funnel or spoon
- 2.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 3.⚖️ 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) True (b) False
- 4.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 5.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) vinegar is hot (d) the bottle shrinks
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) vinegar (d) a mirror
- 7.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 8.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
- 10.True or false: baking soda water is a base. (a) True (b) False
- 11.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) it is only dissolving (d) no, nothing changes
- 12.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) it glows in the dark (d) nothing at all
- 13.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
- 14.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) baking soda (d) a funnel or spoon
- 15.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) vinegar (d) plain water
- 16.True or false: detergent water is a base. (a) True (b) False
- 17.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 18.⚖️ 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
- 19.🫧 Which of these is a base? (a) salt water (b) lemon juice (c) tamarind water (d) detergent water
- 20.⚖️ 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
- 21.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 22.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) curd (d) orange juice
- 23.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a battery cell (d) a tray for spills
- 24.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
- 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a seed (d) baking soda
- 26.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
- 27.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
- 28.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 29.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 30.⚖️ 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
- 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
- 32.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
- 33.True or false: sugar water is neutral. (a) True (b) False
- 34.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) tamarind water (d) curd
- 35.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) curd (d) vinegar
- 36.⚖️ 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
- 37.⚖️ 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
- 38.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 39.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 40.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) orange juice
Answer key
- a mirror
- an acid
- True
- a base
- gas is made inside
- a mirror
- a base
- an acid
- keep it away from eyes
- True
- yes, a new gas forms
- lots of fizzy bubbles
- True
- a comb
- vinegar
- True
- True
- False
- detergent water
- we keep it the same
- an acid
- baking soda water
- a battery cell
- True
- a seed
- very little fizzing
- an ingredient ran out
- False
- needed
- the kind of balloon
- we measure it
- True
- True
- baking soda water
- plain water
- False
- we change it
- needed
- not needed
- orange juice
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids