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