Yeast bubbles

We are learning to make Yeast Bubbles. I liked how the bubbles overflowed. I found it challenging to wait for the yeast bubbles to expand.

Yeast Bubbles

Have you ever wondered how to make yeast bubbles?
First, get a cup and put half a teaspoon of yeast in it then some warm water (37 degrees) and lastly 2 teaspoons of sugar in it.
Wait about 10 minutes and there will be yeast bubbles.
The bubbles happened because yeast likes sugar and it basically ATE the sugar which made it expand with carbon dioxide.

Filtering raro in sand and iron filings

We are learning about chemical reactions in class. I liked how the iron filings stuck to the magnet. It was satisfying. I found it tricky to use technical language. Here is my explanation.

Have you ever wondered how to filter things? All you really need is filter paper or a Magnet.

A mixture is two substances that don’t chemically combine, which means they can be separated.

If you put iron filings in sand, raro and water you can remove the iron filings with a Magnet. To remove the sand and raro, get filter paper and put in a cup. Next, put sand and raro mix in the filter paper and then put sand in separate cup and let it dry then put it in the Sand Pit. then with the raro put it in the sun and let the water evaporate.

Profile

Hi i’m Alexander. I am 10 years old and I attend St Mary's Catholic Primary School. I’m a NZ European and I have a sister, mum, Oma and Poppa.

I love reading as it entertains me and I learn a lot from it. I’m a really good soccer player and gamer. I enjoy playing soccer because I love the skill and competition it takes to be good. My challenges are not talking while on the mat and completing my work on time!

I’m looking forward to finishing school this year and starting a new school at Campion College across the road.