Yeast

Experiment

Here is the yeast experiment with a bottle, yeast and a balloon. The experiment is done in 3 bottles. Lets see what happens after 20 minutes?

Research

What effect does sugar have on yeast?

What is fermentation?

What are 3 foods / drinks that have yeast? 

Yeast is alive and in a hibernation state. It is a fungi.

Aim: To look at how yeast is used in foods.

Equipment

 Spoons

Kettle

Bowl

Beaker

Cloth Sieve

Funnel

Plastic(PET) bottle an cap.

Materials

Bug (for group of 3)

50ml water

1.2 tsp active dried yeast

1/2 tsp sugar

1/2 tsp ground ginger

Ginger beer (for 1 litre)

3/4 cup sugar

1/2 tsp cream of tartar

1L cold water

Juice o 1/2 lemon 

1 tsp ginger beer bug.

Method 

1. In a large bowl, put the sugar and cram of tartar, then add the warm water.

2. Stir to dissolve the sugar before adding the cold water.

3. Add the ginger beer bug to the large bowl of cold water.

4. Stir well and then pour into your clean bottle.

5. Label your bottle with your group names.

6. Place all the bottles in the glass container.

7. Store in a cool, dark place for one week before drinking.

8. Make sure you open the bottle in the kitchen sink as it might overflow. Open the cap bit by bit to allow the air to escape.

The ginger must be drunk over the 6 days.

You must provide your own bottle.

We wanted to see how yeast was best activated. To do this we use 3 conical flasks, a teaspoon of yeast in each one, some water in each one and some sugar in one flask. We need then put a balloon on top of each flask. We found out that the flask that had yeast and sugar inflated the balloon. It showed that when yeast has sugar it activates and creates a gas called "Carbon Dioxide Gas". 

I hope you guys like my post! I am very sorry if it's too long to read but thank you for reading all the way! Goodbye!