Minerals
The definition of a mineral is: A mineral is a naturally formed, inorganic solid that has a definite crystalline structure.
What is a mineral?
Solid: cannot be a liquid or a gas.
Naturally Occurring: Found in nature, not man made.
Inorganic: Is not alive and never was, no living
Fixed composition: Has a chemical formula, most are formed from compounds of two or more elements, some minerals consist of on element ex.
Crystal Form: A definite structure in which atoms are arranged.
Input Output Rocks and minerals
Well first you wonder how are rocks created? and so i will tell you how. There are three different types of groups of rocks Sedimentary, Metamorphic, and Igneous. Sedimentary rocks are formed by broken by winds and water then get washed into rivers, lakes etc. Then it forms layers that hardens and forms rock. Metamorphic rock is formed by rocks under tons of pressure which forms heat and makes it change to metamorphic rocks. Igneous rocks are formed by magma cooling forming igneous rocks. This is called the rock cycle it just keeps on going on and on it never ever stops.
One other question that we ask ourselves is can rocks be minerals? And yes they can. One of them is Quartz. Some really cool rocks are pumice it is my favorite! because pumice can float on water. So if you think that rocks can't float you are wrong this one can! And Marble for example is used in many statues. If you go to Greece you will find lots of it there. And you can find sand stone on the sides of cliffs near the ocean.
Wednesday 9 March 2011
Tuesday 8 March 2011
My Reflection on Mount St. Helens
Reflection
How do I think I did?
I think I had a lot of information. But I know I could have done more. I could have done more about the soils around the volcano. And I could have done better with my presentation. But I was happy also with what I had done with only just me and not working with other people.
What was missing from my presentation?
I think I needed more information about the soils around the volcano because I really only had three facts. Also when I present something I always seem to speak to fast. And I think that because I am nervous. I also didn't look at people, it was like my eyes were glued to the screen.
What grade why?
I think I shall give myself a 4 because for a start for is in the middle so it isn't bad but it isn't perfect. I think I was happy with what information I had done. But another reason I gave myself a 4 is because also because when I presented it, I was not looking at the audience and I was speaking to fast. And also I did not have enough information about the soils around the volcanoes. But all together I think I did good.
What you learned about volcanoes and how they affect people who live around them?
I learned so much about volcanoes. And I have learned a lot about Mount St. Helens. Volcanoes really do effect people because first the soils and things that are around it. And when it can erupt. They can effect many, many things.
How they affect the world.
How volcanoes effect the world is how there are just so many. Volcanoes are the things that let the earth breath. This is a gross example but its like you have a stuffy nose and you want to blow, so that is just what they do they just blow and push out the snot which is lava. But I just wonder what would the world be like if there were no volcanoes?
So this was my evaluation on my presentation Mount St. Helens. I really hoped you enjoyed.
How do I think I did?
I think I had a lot of information. But I know I could have done more. I could have done more about the soils around the volcano. And I could have done better with my presentation. But I was happy also with what I had done with only just me and not working with other people.
What was missing from my presentation?
I think I needed more information about the soils around the volcano because I really only had three facts. Also when I present something I always seem to speak to fast. And I think that because I am nervous. I also didn't look at people, it was like my eyes were glued to the screen.
What grade why?
I think I shall give myself a 4 because for a start for is in the middle so it isn't bad but it isn't perfect. I think I was happy with what information I had done. But another reason I gave myself a 4 is because also because when I presented it, I was not looking at the audience and I was speaking to fast. And also I did not have enough information about the soils around the volcanoes. But all together I think I did good.
What you learned about volcanoes and how they affect people who live around them?
I learned so much about volcanoes. And I have learned a lot about Mount St. Helens. Volcanoes really do effect people because first the soils and things that are around it. And when it can erupt. They can effect many, many things.
How they affect the world.
How volcanoes effect the world is how there are just so many. Volcanoes are the things that let the earth breath. This is a gross example but its like you have a stuffy nose and you want to blow, so that is just what they do they just blow and push out the snot which is lava. But I just wonder what would the world be like if there were no volcanoes?
So this was my evaluation on my presentation Mount St. Helens. I really hoped you enjoyed.
Subscribe to:
Posts (Atom)