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