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