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