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 the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) it is only dissolving (d) yes, a new gas forms
- 2.True or false: detergent water is an acid. (a) False (b) True
- 3.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
- 4.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
- 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.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) a battery cell (d) a tray for spills
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
- 8.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) sugar water (d) curd
- 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
- 10.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 11.🔍 Which is the odd one out? (a) vinegar (b) curd (c) detergent water (d) lemon juice
- 12.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 13.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
- 14.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 15.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the kind of balloon
- 16.🫧 Which of these is an acid? (a) lemon juice (b) soap solution (c) baking soda water (d) plain water
- 17.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
- 18.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
- 19.True or false: sugar water is an acid. (a) True (b) False
- 20.🔍 Which is the odd one out? (a) curd (b) vinegar (c) orange juice (d) baking soda water
- 21.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 22.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) curd (d) plain water
- 23.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 24.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 25.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 26.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) baking soda (d) a magnet
- 27.🛟 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
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
- 29.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) a magnet (d) an empty bottle
- 30.📘 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
- 31.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) soap solution (d) vinegar
- 32.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a magnet (c) a battery cell (d) a comb
- 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
- 34.True or false: salt water is an acid. (a) False (b) True
- 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
- 36.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 37.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) sugar (d) a funnel or spoon
- 39.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a comb (c) an empty bottle (d) baking soda
Answer key
- yes, a new gas forms
- False
- True
- very little fizzing
- False
- a tray for spills
- False
- curd
- True
- False
- detergent water
- True
- gas is made inside
- True
- spoons of baking soda
- lemon juice
- rinse with clean water
- salt water
- False
- baking soda water
- a base
- plain water
- not needed
- True
- a base
- baking soda
- keep it away from eyes
- True
- an empty bottle
- they react
- vinegar
- a funnel or spoon
- False
- False
- False
- not needed
- not needed
- sugar
- neutral
- a comb
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids