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