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