Students are preparing projects, demonstrations, and presentations to share at our STEAM Extravaganza on Thursday, April 10th!

I'll add a slideshow of our student work here, and I'll add any photos of the event afterward!

There will be food trucks and a LOT of cool things to experience and see, so come out and bring your friends and families!!!

A sound wave is started when something like a whistle makes a vibration, which starts a sound wave.  during a process that starts at the ear. The sound wave travels to the ear through the air (the medium). Then it hits our ear and vibrates part of the ear, which makes nerves send signals to our brain.

When the frequency is high, the pitch is high. When the amplitude is high, the volume is high.

The body is organized from simpler to more complex levels. The simplest level is the cells. Many cells come together to form the tissues, and layers of tissues come together to form organs. An organ system is the respiratory system, which is made up of organs.

We told each other what we did during winter break and someone's neighbors shot a fire work in their window. We also did notice and wonder on fossils and I have a bunch of questions like why were there not that many splotches  on the map were Precambrian. I made clay models about fossil formation types, including a shell, a leaf with bite marks, insect wings, and a shark tooth. Trace fossils are fossils that show that a animal was there. A mold fossil is a fossil that is an imprint of a living animal or plant but the original remains aren't there.

  But fossils sometimes show when animals die. When don't see the fossils anymore, it means they went extinct. Also when fossils form sometimes the flesh will rot away and sedimentary layers will layer on top of the fossil. We also learned about how the earth formed with timelines which comes to how old the earth is.

In this unit we learned about rocks, fossils, evidence, reasoning, claims, and much more! So, I am going to be talking about a story of fossils! So, why are fossils so big from a long time ago? Well, fossils from insects are so big because a long time ago there where so many HUGE bugs, but also why are they not that big now and they are now so small and tiny? Well the reason why there are like no more HUGE bugs and now they are so tiny, well it is because the lack of oxygen now! The bugs where so big then because they had so much oxygen and they breath in and out the oxygen from there skin! And now since there is bearly as much oxygen as there was 1,000,000,000 years ago is why there is no more HUGE bugs , and now they are smaller than our nails!

Well a fossil is any sort of remains from a very long time ago and now they are a trace or a remain of a living animal! Well in the fossil records a fossil has to be 10,000 or more years old! Well acctually yes! A  dead plant that has been sedimented is considered a fossil since it was once a living thing, and now has either died or has been gone under the fossilization process! I hope you loved learning about fossils as much as I did!

I learned so much this unit! especially about fossils. I learned that the law of superposition can help us know how old layers of rock are. We know the oldest is at the bottom, and the youngest is at the top, sowe know how long ago an animal existed! We can also use layers of rocks to tell what envirement it used to be, and we can use the fossils living there to tell us. A good example is if we see a fossil in a lower layer that lives in water, we know that it used to be underwater at that time!!!Fossils can tell us alot about the past, like what the envirement was at that time, what lived there, and if they still live now! we know if an animal is extinct because its no longer existing, but it used to, and we can tell because they are in a fossil from long ago, and didnt apear again in the younger layers. Fossils are formed when an animal  or living organism is left behind, and gets preserved by preasure, sediments, and heat. Fossils can be made in three different types of rock: medamorphic, igneous, and sedimentary. Fossils form this way so they can get preserved. There is also three different kinds of fossils like mold, cast, petrified wood, and trace! mold and cast fossils are made when a cast or mold is left behind, after a living organism dies, decays, and leaves a mold. Petrified wood fossils are made when a tree falls, gets covered in water, and the water cells mix with the tree cells and make it petrified. Trace molds are made when a trace is made by an animal, and gets preserved in a rock.I have learned so much about fossils, and layers in rock this unit, and how they can tell us the past, and i hope i will learn even more in teh future!

During this unit I looked at original remains of bugs that were 40 million years old. They were in amber, which is made of hardened sap. We can tell when species went extinct because we see the fossils in a layer, but then we never see them in any of the younger layers.

Fossils form underground. They start as bones, then the layers of little rocks and sand build up on top, and then the bones get old and harden into rocks.

Ocean fossils got to the top of the Sandias because that land was lower so it was under an ocean. Then the Earth was changing, so the mountains grew, taking the fossils with them.

In this unit we learned about how layers are formed and we also learned that the oldest layer is on the bottom and the newest layer is on the top. More things we learned about were the rock cycle, relative dating, mass extinction, sedimentary, igneous, and metamorphic rocks.

Fossils form when a living organism (such as plants or animals) dies and is quickly buried by sediments.

We can tell when a species is extinct because you won't see anymore of the animal. Another way you can tell is when the last of a certain kind of animal dies without leaving a genetic successor.

During this unit I learned a lot about layers of rocks, fossil, and fossilization. We learned how fossils are formed when a shell or animal bones are deposited on the ground, and slowly over millions of years get buried and fossilized. We also learned that, we know when species go extinct when we look at rock layers and the disappears as the layers grow younger. Fossils we learned form in sedimentary rock, because if they were to form in igneous or metamorphic, for metamorphic the would get destroyed by the pressure, and with igneous rock the could not survive the heat and they would melt. As well as learning about rock layers we learned about the law of superposition which states that the layer on the bottom is the oldest and the layer on the top in the youngest.