In today’s class we did two main things. We talked about Japan and the Earth.
First Miss D. checked our moon homework.
Than she explained to us what happened in Japan in the last few days.
The picture on the right side shows some of the houses that collapsed because of the earthquake and the tsunami in Japan.
The other problem in Japan at the moment are the nuclear reactors which explode. Click here to see how nuclear reactor #3 explodes. It is pretty scary.
After we finished talking about Japan we went on to our actual topic, the Earth. The symbol of the Earth is a circle with a cross in the middle as you can see it on the left side. (If you can't see it click on it and it will become bigger). The four parts stand for the four elements.
Rotation: The Earth spinning around its own exes.
The Earths rotation takes 23 hours and 59 minutes. This happens counterclockwise.
Revolution: The Earth traveling around the Sun.
This process takes 365 1/4 days =365 days and 5 hours.
You can prove that a year is 365 1/4 days long, because of the Lap year every 4 years when 4 times 1/4 day makes one. This is when there is a February 29.
The distance on Earth is measured with longitudes and latitudes.
The prime meridian is at 0 degrees longitude.
The equator is at 0 degrees latitude.
The other two very important latitude lines are tropic of cancer, tropic of Capricorn. Tropic of Cancer is located at 23.5° N and the Tropic of Capricorn is located at 23.5° S.
This webpage gives you very interesting scientific facts about the Earth.
Here are some interesting facts about the Earth.
We didn't have homework, but you can still check out Moodle.
I hope you liked it.
The next scribe is Gio.
