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.🫧 Which of these is neutral? (a) tamarind water (b) vinegar (c) sugar water (d) detergent water
- 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
- 3.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 4.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 5.⚖️ 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) size of the balloon (c) the kind of balloon (d) the amount of vinegar
- 6.True or false: detergent water is neutral. (a) False (b) True
- 7.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 8.🔍 Which is the odd one out? (a) orange juice (b) soap solution (c) baking soda water (d) detergent water
- 9.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) plain water
- 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.True or false: vinegar is a base. (a) False (b) True
- 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the same bottle (c) spoons of baking soda
- 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 measure it (c) we keep it the same
- 14.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
- 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) vinegar (d) a mirror
- 16.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 17.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 18.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
- 19.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a battery cell (d) a balloon
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
- 22.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) the balloon bursts (d) very little fizzing
- 23.🫧 Which of these is an acid? (a) lemon juice (b) salt water (c) soap solution (d) baking soda water
- 24.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
- 25.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
- 26.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
- 27.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
- 28.📘 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
- 29.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) curd (d) tamarind water
- 30.True or false: baking soda water is neutral. (a) True (b) False
- 31.True or false: plain water is neutral. (a) True (b) False
- 32.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) vinegar (d) a mirror
- 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda (d) the same bottle
- 34.🔍 Which is the odd one out? (a) plain water (b) salt water (c) baking soda water (d) sugar water
- 35.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) vinegar (d) a magnet
- 36.⚖️ 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
- 37.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) baking soda (d) a tray for spills
- 39.True or false: lemon juice is neutral. (a) True (b) False
- 40.🫧 Which of these is a base? (a) vinegar (b) lemon juice (c) plain water (d) detergent water
Answer key
- sugar water
- True
- True
- False
- spoons of baking soda
- False
- an acid
- orange juice
- plain water
- keep it away from eyes
- False
- the same bottle
- we keep it the same
- rinse with clean water
- a mirror
- True
- not needed
- they react
- False
- a battery cell
- False
- very little fizzing
- lemon juice
- carbon dioxide
- needed
- True
- False
- yes, a new gas forms
- salt water
- False
- True
- a mirror
- size of the balloon
- baking soda water
- vinegar
- we keep it the same
- not needed
- sugar
- False
- detergent water
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids