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