Thursday, March 7, 2013

Resistance


Remember we said before that the three basic parts for most of the electricity that we see every day are:
Voltage, current, and resistance.

We can learn about electricity by comparing it to how water flows through a pipe.
We learned that voltage is like the speed that the water is going.
and that current is like the size of the pipe.

You can think of the Resistance as anything in the pipe that would slow down the water.

So if the pipe got smaller in the middle, that would make it so not as much water could flow through.
resistance
(from: wikipedia - hydraulic analogy)

Wednesday, March 6, 2013

Alligators and Crocodiles


We just learned a little about Zebras.

What's the difference between an alligator and a crocodile?
alligator and crocodile
(from: wikipedia - crocodilia)

Can you see any difference?

One of the easiest differences to see is that the alligator on the left has a larger rounded mouth and nose
and the crocodile on the right has a smaller pointed mouth and nose.

Tuesday, March 5, 2013

Human skull


The whole human skull is called the cranium.
human skull
(from: wikipedia - human skull)

The part of the human skull that protects and holds your brain is called the neurocranium.
It is sometimes also called the braincase or brainpan.

neurocranium
(from: wikipedia - neurocranium)

Monday, March 4, 2013

Central American Countries


Below the three biggest countries, Canada, USA and Mexico,
you'll find 7 more countries that make up what is sometimes called Central America.

central america
(from: wikipedia - central america)

The countries are:
Belize, Costa Rica, El Salvador, Gautemala, Honduras, Nicaragua and Panama.

These 7 countries together make up 41 million people, (just 10 million more than Canada)
and all lumped together are smaller than Mexico.

They all have very warm weather since they're so close to the equator,
and 5 of them have coastlines on both the Pacific and Atlantic ocean.

The country Panama even has a canal going through it,
which is a water way that lets boats go through.
panama canal
(from: wikipedia - panama canal)

This is very helpful for travelers so they don't have to go all the way around South America!

Sunday, March 3, 2013

Old Testament and New Testament


We just learned about the Apostle's Creed.

Did you know that the the Bible is split up into two parts?

The Old Testament and the New Testament.

The Old Testament is a history of all the things that happened up until the birth of Jesus.

The New Testament starts during the time of Jesus, and tells of his birth, death and his followers.


(from: wikipedia - old testament)

Saturday, March 2, 2013

Saturn


Saturn is the 2nd largest planet in our solar system, right behind Jupiter.
It's 9 times bigger around than Earth.
saturn
(from: wikipedia - saturn)

We already learned about Saturn's 12 Rings.

Saturn is a gas giant just like Jupiter,
and just like Jupiter it has a really big moon that's bigger than Mercury

The moon Titan is a little less than half the size of Earth.
cassini

Friday, March 1, 2013

French - He is angry


We just learned how to say I am happy and you are sad in French.

Now let's learn how to say He is angry. (Or she)

We can break it up into the three words:
He - Il - sounds like eel /?/
She - Elle - sounds like el /?/
is - est - sounds like et /?/
angry - en colère - Sounds like aw-cool-ay-uh /?/


All together Il est en colère sounds like eel-et-aw-cool-ay-uh.

and Elle est en colère sounds like el-et-aw-cool-ay-uh.