In science, we learned the parts of an eye an light. We learned about the parts of the eye an how light goes through the eye. First light is reflected of something. The light goes through our eyes. First it goes through the cornea. Then it goes through the aqueous humor. Then is goes through the iris. After that it goes through the pupil and then into the lens. After the lens it goes through the vitreous humor and the goes to the optic nerve where the brain focus the light and makes an image.

For this unit of science, it was really difficult at first because there were so many things to learn and cram into our brains. We first learned about light and how it is reflected and refracted. Then we learned about the colors of light. After that we started learning about the parts of an eye and what are there functions. This part was really easy and I knew the parts of an eye. After that, we learned about the electromagnetic spectrum. She gave us a little trick to help us remember the electromagnetic spectrum. First is radio waves and then microwaves. After that is infrared waves and then visible light. After that is ultraviolet, then x-rays and then gamma rays.

Yesterday we had zoo day and I can say that it was kind of boring. My group and I got to see our animal, the Speke's Gazelle. I then realized that the scientific name was wrong, and it was Gazella Spekius. That was our first mistake. With our research it said the scientific name was Gazella Spekei. Then it said that it lived in dry grasslands, and we put something else. It made me feel bad that we had mistakes on our research, and I thought we had the worst website, but I'm sure other people had mistakes too.

Our research was kind of off because we got different things than what the zoo said. Even though we got some things wrong, our research was pretty spot on. I hope many people learned new things about our animal and hope that someone will help it survive. Some of the things we got right was that it was endangered and that it lived in Africa. At least I was happy that we got some things right and didn't get the whole thing wrong. Some things that we got wrong on our research was the scientific name of the animal.

Have you ever wondered what makes a rainbow? You see them when you spray the hose and see the mist and the rainbow together. How does that rainbow form? Rainbows form by the reflection of water droplets in the air. When you see the mist, the water droplets are reflecting the colors in the spectrum. Those colors make a rainbow. A rainbow is an optical phenomenon which means that the rainbow isn't really there. It's kind of like a projection of colors reflected into the light.

You usually see rainbows after a storm. The main colors in a rainbow are red, orange, yellow, green, blue, indigo, and violet. We called these colors in science ROYGBIV. These colors are in the spectrum of light. When you use a prism to separate the colors, you will see that a rainbow will form when you use it. The colors are ROYGBIV from the spectrum. There are some legends about rainbows. I'm sure everybody has heard that if you go to the end of a rainbow, you will find a leprechaun and his gold, but that legend is not true.

I have talked about this topic before. Some people wonder why the sky is blue. What is the real scientific reason for why the sky is blue. As you may know, the sky is reflecting the color blue into our eyes because it absorbs all the other colors except blue. The sky is blue because it reflects off the ocean and we look at the color blue in our eyes. As you know, the ocean is blue because it contains oxygen in it. At one point in history, the ocean was actually green.

There is also tiny droplets of water in the air. Light hits those tiny droplets of water and reflects into our eyes. Way back in history, the ocean was actually green. There was a lot of iron in the ocean which made the ocean green. When cyanobacteria started releasing oxygen in to the atmosphere, it cause a reaction and made the ocean turn blue like today's ocean. Just think about it. At one point, the sky could of been green because the light reflects into the sky. I kind of wish we did have a green sky.