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