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