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