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