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.⚖️ 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
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a comb (d) a funnel or spoon
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a battery cell (d) a tray for spills
- 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) vinegar (d) a tray for spills
- 5.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 6.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 7.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
- 8.🫧 Which of these is neutral? (a) orange juice (b) lemon juice (c) sugar water (d) curd
- 9.⚖️ 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
- 10.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.🫧 Which of these is a base? (a) vinegar (b) baking soda water (c) salt water (d) lemon juice
- 12.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
- 13.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 14.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
- 15.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) a seed (d) baking soda
- 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
- 17.⚖️ 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 keep it the same (c) we change it
- 18.⚖️ 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
- 19.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
- 21.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 22.🫧 Which of these is neutral? (a) tamarind water (b) curd (c) soap solution (d) salt water
- 23.📘 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
- 24.🫧 Which of these is a base? (a) curd (b) tamarind water (c) detergent water (d) vinegar
- 25.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) a seed (d) vinegar
- 26.🫧 Which of these is a base? (a) vinegar (b) sugar water (c) orange juice (d) soap solution
- 27.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
- 28.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 29.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
- 30.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
- 31.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) an empty bottle (d) a funnel or spoon
- 32.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) vinegar (d) curd
- 33.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 34.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) vinegar (d) a comb
- 35.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 36.🔍 Which is the odd one out? (a) plain water (b) curd (c) salt water (d) sugar water
- 37.True or false: detergent water is a base. (a) True (b) False
- 38.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a magnet (c) a funnel or spoon (d) a tray for spills
- 39.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) baking soda water (d) salt water
- 40.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
Answer key
- False
- a comb
- a battery cell
- a seed
- needed
- True
- rinse with clean water
- sugar water
- False
- neutral
- baking soda water
- very little fizzing
- not needed
- gas is made inside
- a seed
- we keep it the same
- we change it
- True
- needed
- keep it away from eyes
- needed
- salt water
- yes, a new gas forms
- detergent water
- vinegar
- soap solution
- True
- False
- not needed
- it grows bigger
- a battery cell
- salt water
- needed
- a comb
- an acid
- curd
- True
- a magnet
- baking soda water
- not needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids