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