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