Hello!

This is Angela, Shermaine, Fasha, Nithiya, Anh and Mingyang from 0923B.

Here are some learning points we gained from the Chemistry Learning Journey.

-Chemistry is applied to our daily life.

-What chemistry can bring about.( as shown in the experiments that the lady did in the science centre)

-We also learned about the products formed when different chemicals are reacted together.

Here are some photos taken during the lecture demostration

Cloth Burning

As shown in the first picture where the cloth contains 50% of alcohol and 50% of water. As we know that if there is water, the cloth will not burn. However in this case, the alcohol has caused the burning. It was amazing because after the lady put out the fire, the cloth looks normal as though nothing happen to it before!

Silver Mirror

This is the silver mirror! This is the coolest experiment!

Look at the equation! It is super long. I was really stunned when the lady just swirled the bottle and it just changed to a silver mirror. The bottle have to be hot to do this experiment. It was really interesting.

Lycopodium

This is the short video Shermaine took during the Dragon Fire experiment. Sprinkled lycopodium powder on a small flame or dispersed in the air and ignited it produces bright flashes of fire, very similar to a dust explosion. It is not explosive as a powder, only when it is dispersed in the air.

Elephant's Toothpaste

This is a brief informaton on how does this experiment works:

first mix concentrated hydrogen peroxide with some liquid soap. Then add a catalyst(MnO2) to make the hydrogen peroxide break down really quickly. Hydrogen peroxide breaks down into oxygen and water. There's a lot of oxygen trapped in peroxide, so this rapid decomposition results in lots of oxygen that needs to quickly push out of the container. As the peroxide breaks down, the soap that was mixed in will also combine with the water (from the break down process), and turn into foam. The oxygen gushing out is what makes the soap bubbles move. You can read more at http://www.using-hydrogen-peroxide.com/elephant-toothpaste.html

That is about all we have. Of course there were other experiments carried out. Here are the photos.

Lastly, i would like to take this chance to thank the teachers who organised this learning journey which i believe everyone has learned something through it. It was really AMAZING CHEMISTRY!