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