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.⚖️ 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
- 2.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
- 3.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
- 4.True or false: tamarind water is an acid. (a) True (b) False
- 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
- 6.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only dissolving (d) it is only melting
- 7.True or false: orange juice is an acid. (a) True (b) False
- 8.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
- 10.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a seed (c) a tray for spills (d) a balloon
- 12.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
- 14.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) detergent water (d) sugar water
- 15.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) vinegar (d) a mirror
- 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
- 18.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 19.True or false: lemon juice is a base. (a) True (b) False
- 20.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) salt water (d) baking soda water
- 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) vinegar (c) a tray for spills (d) a balloon
- 22.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 23.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) tamarind water (d) detergent water
- 24.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) the balloon bursts (d) it turns to honey
- 25.True or false: curd is neutral. (a) True (b) False
- 26.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 27.🫧 Which of these is a base? (a) tamarind water (b) vinegar (c) soap solution (d) sugar water
- 28.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a magnet (d) vinegar
- 29.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) vinegar
- 30.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) an empty bottle (d) a battery cell
- 31.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a balloon (c) a tray for spills (d) baking soda
- 32.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) salt water (d) plain water
- 33.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 34.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired
- 35.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 36.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 37.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 38.⚖️ 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
- 39.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a comb (c) a magnet (d) a battery cell
- 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a balloon (c) an empty bottle (d) vinegar
Answer key
- False
- rinse with clean water
- not needed
- True
- we keep it the same
- yes, a new gas forms
- True
- False
- it grows bigger
- neutral
- a seed
- True
- we keep it the same
- curd
- False
- a mirror
- keep it away from eyes
- a base
- False
- salt water
- a magnet
- True
- tamarind water
- very little fizzing
- False
- not needed
- soap solution
- a magnet
- vinegar
- an empty bottle
- a comb
- baking soda water
- an acid
- an ingredient ran out
- not needed
- not needed
- neutral
- True
- a balloon
- a battery cell
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids