Science- Page 14, Question 6

Combine your understanding of how Earth became spherical and observations of the Moon. Then form a hypothesis about the formation of the Moon.

Earth formed 4.6 billion years ago, like the rest of our solar system. It was formed by a nebula, a cloud of gas, ice, and dust. The nebula shrank and flattened into a disk, and it began to move in a circle. The center formed into the Sun. Then, with the remaining materials, Earth and the other planets formed. Earth became spherically shaped by gravity, powered by the heat being produced by the interior, pulling in the lumps or Earth’s surface. People used to observe Earth’s shadow on the Moon to find Earth’s true shape. I believe that the Moon was formed when some leftover particles from Earth’s early years and the nebula tried to became part of Earth, but were shot back by something. Then, they formed together to become the Moon.

How Does the Environment Effect Your Genes?

This is an assignment for science. We’re supposed to blog about how your environment can effect your genes.

The environment is described as your surroundings. It’s the landscape, the air you breathe, whether its hot or cold, if you live in a city or in the suburbs, and where you work or go to school. What we need to know is how it affects our genes. Well, if you live in a city where the air is very polluted, your genes will probably give you a higher chance of getting lung disease. If you live in a place that’s very sunny, you will probably have the genes that give you light skin. A third example of how the environment can affect your genes is if you live in a place that’s cold, you will probably get the genes that lets you have more body hair.

Turkey Hearts!

In today’s Science class, I got to do something really cool- I got to touch, squeeze, and play with a turkey heart! Mrs. Burkhart got us them because the chapter we are now doing is about circulation of blood, and that’s the heart’s main job. Everybody touched it, even Cayla, who is very squeamish about that stuff! My hands smelled like turkey after the experience, but I did wash my hands.  So don’t worry.

3 Kinds of Rocks (A Rhyming Poem)

Hey everybody, there are 3 kinds of rocks, rocks, rocks

The first one is igneous, and surgeons used it to make flintlocks, flintlocks, flintlocks

It forms when melted rock is cooled, cooled, cooled,

Underground, on Earth’s surface but not in a pool, pool, pool

The second type is metamorphic, it is formed by pressure, pressure, pressure

One mountain on top of a rock, then you got a rock that has endured, endured, endured

The last one is strange as can be, it is called sedimentary, sedimentary, sedimentary

It is formed by rock debris squished together, it can be used to make boundaries, boundaries, boundaries

That is pretty much it, it, it

Now you don’t have to sit, sit, sit (Through my poem)

Granite- an igneous rock.

Image Credit: http://www.flickr.com/photos/selias22/30351721/

 

 

Endangered Elephants

Elephants are my favorite animal. They are big, gray, and amazing! There are two types of elephants: African and Indian. The way you can tell is that African elephants’ ears are shaped like the continent of Africa, and Indian elephants have ears shaped like India. Interestingly, the Indian elephant is more related to the extinct mammoth than the African elephant! Elephants can live up to 70 years, and the biggest African elephant was about 18,000 pounds and stood over 12 feet tall. Elephants need salt to live, and sometimes up to 1,000 square miles of space!

Elephants are famous for their being smart. Their intelligence level is compared to be like dolphin’s and primates. Sometimes, a lion will take a baby elephant or a weak adult elephant, although their only real predator is humans. Poachers often kill elephants for their tusks and them sell the ivory for money. Elephants raise their trunks to greet friends or to smell for enemies. As I said, elephants are often hunted for their ivory. This means that they are usually hunted. But, hunting is being prevented. Nowadays, people usually buy plastic or other things instead of ivory, so elephant population is gradually coming back. Save the elephants!

To find out more about elephants, you could click here or here.

 

 

 

 

George Carver the Gardener

George Washington Carver was born in what we believe the year 1864, in Missouri. He was a sick kid, so he couldn’t to the heavy work on a farm. Instead, he took charge of the plants. He studied- what else?- plants and chemistry in college. He became a teacher at Tuskegee Institute, and  then he discovered something that would change farming forever.

Southern farmers had been planting only cotton for over 200 years! This took all the richness out of the soil, meaning that the cotton became worse. Carver said said that if you plant different plants every year, then the plants would return the nutrients to he dirt.  But then it was so successful, so farmers were ending up with LOTS of peanuts. This inspired George Carver to find out hundreds of ways to use the peanut for. There is a story that one time Carver served important guests soup and other edibles. Imagine their surprise when they found out everything was made out of peanuts!

I think that our teacher, Mrs. Zavon, made us research George Washington Carver because he found ways to preserve the soil. He also found a way to make the average peanut  into soup, soaps, shampoo, shaving cream, even ink! This is a connection with our science chapter because we are reading ways to preserve the environment and how humans harm it.

If you want to know more about George Carver, you should visit http://www.harcourtschool.com/activity/biographies_science/carver/

We had to do this post as homework. It was a Science I.R. (Independent Research) in my group. In Science we were learning about preserving the soil and as I said in my post, Mrs. Zavon made us write it because he found ways to preserve the soil. I think that I did good on my post. One reason is because I left a link so my visitors could find out more if they want to.

 

Changes in an Ecosystem- Secondary Successions

A secondary succession is a succession that builds a ecosystem back. It happens after a disaster like a forest fire or volcano eruption. While primary succession is slow, secondary successions are fast because the dirt is already there. Occasionally, when a forest fire happens, the roots still survive. Wind brings back more seeds, and then plants start growing back again. But, there is always a primary succession in a secondary succession.

 

 

How Organisms Compete and Survive in an Ecosystem

         Organisms in one ecosystem are called populations. Populations living with other populations are called a community. Another part of ecosystems is the physical environment, which could be the sun, air, water, weather, and dirt. Populations interact with the dirt and sun and water. But to live, each population needs a specific amount of this stuff. The need to get these things leads to competition. To compete in habitats, animals have adaptations.

          Sometimes different populations relate with each other, which is called symbiosis. One kind of symbiosis is called mutualism, where both organisms are helped. Another kind is called commensalism, where one organism benefits and the other isn’t hurt. The last symbiosis is called parasitism, where an organism thrives whiles the other is affected. To survive, prey have to killed by predators (meaning that animals have to be killed). As it is easy to know that predators need prey, it is harder to see that prey need predators. But they do, because if predators would be taken out of the food chain, then the prey would get bigger, and then starve because all the food would be eaten.

    A human population is like a neighborhood or town. But a animal population is a group of animals living in a habitat. A animal community is lots of groups of animals living in, say, a savannah. A human community is a county or state. Also, human competition is when humans and animals fight over land and trees. Animal competition is over water or food.

Science Story- I AM the ATOM

Hello! I am one of the billions of atoms that makes up a pencil. I am the tip of the lead that goes onto papers. I am very special, because you have to be very strong to be the lead. You have to bear the hard force as the kid that you’re assigned to makes marks on his papers. Worst of all, the pencil sharpener, the machine that takes innocent lead and chops it up then stores it. I’ve already lost 2 uncles, a aunt, 3 cousins, my oldest sister, and one of my best friends.

In the morning, I wake up and see the blueness of my pencil box cover. I stretch and try to get as sharp as possible for the new day. Uh-oh! I say. I have a big test today. That means lots of scratch-outs, marks, and worst of all the pencil sharpener. I get in position as I my my kid coming. “Good morning Ms. Susan!”  “Good morning Mary! I hope you’re ready for the test!” I see Mary’s huge fingerprints pressed up against me as she picks me up. First is some reading. Mary’s good at that, so not much pressure. Yet. Next is some grammar, so I braced myself. That’s one of her worst subjects. She scratches out a lot here. Her pencil tip broke! That means the PENCIL SHARPENER! I brace myself. I hold my tears as I see my Conrad go down to heaven. Next comes spelling, when Mary has a habit of chewing the eraser. That’s bad for my mom because she has friends up there. My mom rushes to me and says, “The garden club president just got swallowed! What will I do about my garden!”

Then, as fast as a erase mark, the test is finished. No more residents being swallowed, and the most important of all no more pencil sharpener. I look to see the #2 Pencil Cleanup Patrol come to help clean up. I am going to look for a new friend to replace Conrad. Happily, school is out! We can live in peace for two months while Mary is gone! I will miss Ms. Susan’s sweet voice, and I wonder who will be my next student. But, I always know, the next student means a new adventure.