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