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