Leaving Agent Ballon Experiemnt

Blowing Up A Balloon with Leavening Agents

Experiment 1

Baking Concept: Baking Soda (Base) must have an acid to react to create Carbon Dioxide which helps a baked product to rise.

Baking Soda and Baking Powder Experiment

Materials & Pre-Demo Preparation:

Lemon juice

1 Balloon

Empty soda bottle

30 mL water

1 teaspoon baking soda (5 g)

Funnel

Directions:

Place the balloon around stem of the funnel.
Put baking soda into balloon.
Pour lemon juice and water into bottle.
Place end of balloon around neck of bottle.
Let baking soda fall into bottle and observe

*****Repeat this experiment omitting the lemon juice, substituting the baking soda for 2tsp baking powder and adding 30 ml of water.

Yeast Experiment

What do I Need?
1 packet of active dry yeast
1 cup of very warm water (105-115 F)
2 T Sugar
Large Rubber Ballon
1 soda bottle

What do I do?
1. Stretch out the balloon by blowing it up repeatedly, and then lay it aside.
2. Add the packet of yeast and the sugar to the cup of warm water and stir.
3. Once the yeast and sugar have dissolved, pour the mixture into the bottle. You’ll notice the water bubbling as the yeast produces carbon dioxide.

4. Attach the balloon to the mouth of the bottle, and set both aside.

5. After several minutes, you’ll notice the balloon standing upright. If you don’t see anything happen, keep waiting. Eventually, the balloon will inflate.

Yeast + Sugar = Carbon Dioxide and Ethyl Alcohol (Fermentation)

Make sure as lab groups complete the lab, that you go to each on and reteach about how different reaction must take place to create carbon dioxide.

Comments

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