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 is the odd one out? (a) sugar water (b) salt water (c) vinegar (d) plain water
- 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
- 3.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
- 4.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) curd
- 5.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 6.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a balloon (d) a battery cell
- 7.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) lemon juice (d) plain water
- 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
- 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
- 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
- 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
- 12.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 13.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) salt water (d) plain water
- 14.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) sugar water
- 15.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 16.⚖️ 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 measure it (c) we keep it the same
- 17.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
- 18.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a comb (d) baking soda
- 19.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 20.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 21.🧺 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) baking soda
- 22.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) sugar (d) a tray for spills
- 23.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
- 24.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) sugar (d) a battery cell
- 25.True or false: detergent water is an acid. (a) False (b) True
- 26.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 27.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
- 28.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 29.True or false: orange juice is an acid. (a) False (b) True
- 30.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 31.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) carbon dioxide (d) helium
- 32.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 33.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a magnet
- 35.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a balloon (c) an empty bottle (d) sugar
- 36.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) an empty bottle (d) a tray for spills
- 39.⚖️ 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) True (b) False
- 40.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
Answer key
- vinegar
- keep it away from eyes
- it grows bigger
- curd
- needed
- a battery cell
- plain water
- very little fizzing
- False
- the amount of vinegar
- we keep it the same
- an acid
- soap solution
- sugar water
- False
- we change it
- False
- a comb
- not needed
- needed
- a battery cell
- a tray for spills
- False
- vinegar
- False
- not needed
- needed
- neutral
- True
- False
- carbon dioxide
- an acid
- a base
- a magnet
- sugar
- an ingredient ran out
- we keep it the same
- sugar
- True
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids