Science Yeast

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

Ingredients

Spoons

kettle

bowl

beaker

cloth sieve

funnel

plastic (PET) bottle and cap

    Materials

50ml warm water

1/2 tsp active dried yeast

1/2 tsp sugar

Ginger beer 

3/4 cup sugar 

1/2 tsp cream of tartar

1L cold water

juice of 1/2 lemon

1 tsp ginger beer bug

Method

1. in a large, put the sugar and cream of tartar and then add the warm water

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

3. add the ginger 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 class 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 a bit by bit to allow the air to escape.

The ginger beer must be drunk over 6 days 

you must provide your own bottle

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