Voltage

We just learned about Neutrons, Protons and Electrons.

How does the electricity from the plug in the wall go through the wires,
and to the lamps, TVs and toys we use every day?

You can't see it with your eyes, but scientist have studied and discovered that
there are three basic parts for most of the electricity that we see every day:
Voltage, current, and resistance.

We'll take time to learn about these one at a time,
starting with voltage which is sometimes called potential difference.

It can be confusing to try and imagine the way electricity works when it's zapping through a wire or a plug,
so we try to compare it to a pipe filled with water, since that's something easy to picture in our imagination.

If you have a big pipe filled with water, you can think of the voltage
as the speed of the water going through, or the speed that it is being pushed through the pipe.

(from: wikipedia - hydraulic analogy)

Prairie Dogs

We just learned about the Anteater.

Prairie Dogs are small animals found in North America, that are part of the squirrel family.


(from: wikipedia - prairie dog)

If you see the small hole in the ground for a prairie dog,
you might just think it's a small place for them to hide out in the storm,
but prairie dog holes, or burrows can be up to 33 feet long and 10 feet under ground!

And they're not just a simple hole either, they are tunnels with small little rooms (or chambers).
There can be up six different entrances to the underground tunnels,
and they sometimes have different chambers for raising babies,
sleeping, and hiding out from the cold in the winter.

Metatarsus

We just learned about the Tarsus.

The foot bones that make up the long part of your foot before your toes,
are called your Metatarsus or Metatarsal Bones.

(from: wikipedia - metatarsus)

There are five of them, just like the Metacarpals in your hand,
numbered one through five starting on the side of your big toe and going toward your pinky toe.

United States of America

We just learned about the country of Canada.

The United States of America is located in the North American continent.
It's often referred to as US, USA or America.


(from: wikipedia - united states)

The US makes the most money in the world, and in 2012 made over $15 trillion dollars!

There are 50 different states in the US, which is why the flag has 50 stars.


Over 300 million people live in the US, and it is one of the most diverse nations in the world.
That means that there are all types of different people from different places, like England, Russia, China, India, Japan, Mexico and many other countries!

Apostle's Creed - Part 11

Apostle's Creed - just two more lines!

We've learned up to Part 10 so far.

I believe in God, the Father Almighty, maker of heaven and earth.
And in Jesus Christ, his only Son, our Lord
who was conceived by the Holy Spirit, and born of the virgin Mary,
suffered under Pontius Pilate, was crucified, died and was buried.
He descended into hell. On the third day He rose again from the dead.
He ascended into heaven and sits at the right hand of God the Father Almighty.
From thence He will come to judge the living and the dead.
I believe in the Holy Spirit,
the holy Christian Church, the communion of saints,
the forgiveness of sins,

Here's part 11:

the resurrection of the body,


(from: wikipedia - apostle's creed)

This means you believe that some day after we die, Jesus will come again and bring us into eternal life.

Mars

The first planet on the other side of Earth further from the sun is Mars.

Mars is sometimes called the red planet, and you can see why!

(from: wikipedia - mars)

Mars is the second smallest planet in our solar system,
the temperatures are as cold as −225°F and hot as 95°F.
but it's possible that astronauts could survive in space suits on the planet's surface.

Scientists have been very curious about Mars, since it's so close.

There are two robotic machines on Mars right now:

NASA's Opportunity rover, which landed on January 25, 2004

(from: wikipedia - opportunity rover)

NASA's Curiosity rover, which landed on August 6, 2012

(from: wikipedia - curiosity rover)

French - I am happy

Let's learn how to say I am happy in French!

We can break it up into the three words:
I - Je - sounds like zhu /?/
am - suis - sounds like soo-ee /?/
happy - heureux - Sounds like oo-uh-oo /?/

Together Je suis heureux sounds like zhu soo-ee oo-uh-oo.