Global warming

Tags

atmosphere, cancer, carbon dioxide, clouro flouro carbons, Global warming, ozone layer, ultra violet rays

Do you know what is the ozone layer, global warming and ultra violet rays? The ozone is one of the layers in the atmosphere that protects us from the harmful ultra violet rays. The ultra violet rays can cause skin cancer. Global warming is when too much clouro flouro carbons and carbon dioxide reaches the ozone and make holes at the ozone later. When there are holes in the ozone layer, the ultra violet rays can reach us.

Why should we stop these global warming?

The harmful ultra violet rays can cause skin cancer. So, if these global warming continues, more and more holes will be made, the small holes holes will get bigger and maybe there will be no more ozone layer. If there is no more ozone layer the ultra violet rays can go straight to us.

What causes global warming?

Global warming happens when the clouro flouro carbons and carbon dioxide reaches the ozone layer.

What can we do?

1.1.Stop using too much air-conditioner.

2.2.Do errands in one go.

3.3.Walk, cycle or share transportation.

4.4.Just use one refrigerator.

Please stop global warming if you care for your health.

Playing with Dry Ice.

Tags

Baskin Robins, carbon dioxide, clouds, dry ice, ice-cream

Yesterday,I played with dry ice. My mother and sister went to Baskin Robins to buy ice-cream. At Baskin Robins, they put dry together in the  paper bag (where they put the ice-cream) so that the ice-cream won’t easily melt. They put dry ice rather than the normal ice because normal ice will melt and the paper bag will be wet and torn. Dry ice do not melt. It will turn to gas.

When we reached home, my sister put hot water into bottle and put dry ice.  The hotter the water and the more dry ice, the more cloud came out. The cloud is actually carbon dioxide. When I put a funnel on the bottle, the cloud became thin. It looked like the choo-choo train. Next, we put a cylinder on the funnel. Clouds came out higher and thinner.

I hope I could play with dry ice again.