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