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