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 salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 2.True or false: orange juice is neutral. (a) False (b) True
- 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
- 5.🔮 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
- 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) the same bottle (d) size of the balloon
- 7.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) salt water (d) soap solution
- 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) an empty bottle (c) a funnel or spoon (d) vinegar
- 9.True or false: salt water is a base. (a) False (b) True
- 10.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 11.🫧 Which of these is an acid? (a) plain water (b) salt water (c) detergent water (d) curd
- 12.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) an empty bottle (d) sugar
- 14.🫧 Which of these is neutral? (a) salt water (b) tamarind water (c) vinegar (d) soap solution
- 15.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 16.⚖️ 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
- 17.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 18.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
- 20.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 21.True or false: tamarind water is an acid. (a) True (b) False
- 22.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) detergent water (d) orange juice
- 23.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) baking soda (d) a mirror
- 24.True or false: baking soda water is a base. (a) True (b) False
- 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
- 26.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
- 27.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) vinegar (d) a mirror
- 28.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
- 29.True or false: baking soda water is an acid. (a) True (b) False
- 30.⚖️ 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
- 31.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) vinegar (d) a mirror
- 32.True or false: salt water is neutral. (a) False (b) True
- 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a seed (d) baking soda
- 34.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 35.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 36.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 37.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
- 38.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) soap solution (d) baking soda water
- 39.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a tray for spills (d) a funnel or spoon
Answer key
- neutral
- False
- very little fizzing
- True
- an ingredient ran out
- spoons of baking soda
- soap solution
- a mirror
- False
- True
- curd
- needed
- sugar
- salt water
- an acid
- we change it
- False
- neutral
- keep it away from eyes
- an acid
- True
- detergent water
- baking soda
- True
- True
- needed
- vinegar
- False
- False
- True
- a mirror
- True
- a seed
- not needed
- True
- needed
- True
- lemon juice
- not needed
- sugar
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids