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 balloon for the fizzy balloon? (a) needed (b) not needed
- 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it shrinks (d) it grows bigger
- 3.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 4.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a magnet (d) a balloon
- 5.🫧 Which of these is a base? (a) lemon juice (b) orange juice (c) curd (d) baking soda water
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) sugar (d) a tray for spills
- 7.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
- 8.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) sugar water (d) salt water
- 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
- 10.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
- 11.🔮 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
- 12.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) soap solution (d) salt water
- 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) a seed (d) sugar
- 14.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 15.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
- 16.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
- 17.True or false: soap solution is a base. (a) False (b) True
- 18.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) curd
- 19.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
- 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) a mirror (d) baking soda
- 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) vinegar (d) a comb
- 22.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 23.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 24.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 25.🫧 Which of these is an acid? (a) baking soda water (b) orange juice (c) detergent water (d) salt water
- 26.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
- 28.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 29.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) a comb (d) a battery cell
- 30.⚖️ 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 measure it (c) we change it
- 31.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 32.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
- 33.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a battery cell (d) a tray for spills
- 34.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 35.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 36.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a tray for spills (d) a seed
- 38.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 39.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a battery cell (d) vinegar
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) baking soda (d) a balloon
Answer key
- needed
- it grows bigger
- neutral
- a balloon
- baking soda water
- sugar
- gas is made inside
- baking soda water
- spoons of baking soda
- yes, a new gas forms
- an ingredient ran out
- salt water
- a funnel or spoon
- an acid
- rinse with clean water
- they react
- True
- curd
- False
- baking soda
- a comb
- a base
- needed
- False
- orange juice
- True
- False
- True
- an empty bottle
- we measure it
- needed
- lots of fizzy bubbles
- a battery cell
- False
- needed
- a base
- a seed
- not needed
- vinegar
- a seed
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