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