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