Please remind your parents that we need chaperones for the upcoming field trips (at least two per day).
dates:
Periods A and B - April 14, 15th
Periods C and D- April 16, 17th
This week we investigated the season's and why they occur. The earth's tilt of 23.5 degrees and the revolution around the Sun were the main causes.
Next week we will explore the causes of the Moon phases. Please keep looking at your skylogs and evaluating your data. We took over three weeks worth of observations. Look for the patterns!! They will help you explain the phases.
Question of the Week: Name and explain one theory that describes how our solar system was formed.
7 comments:
The Big Bang Theory~this theory states that 2 ginormous asteroids collided and created the universe. I personally dont believe this at all, because if 2 big rocks collided, it would make more little rocks. And if there were 2 big rocks that created everything, where did those 2 big rocks come from??? That...the world may never know.
Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star (called a supernova). This explosion made waves in space which squeezed the cloud of gas and dust. Squeezing made the cloud start to collapse, as gravity pulled the gas and dust together, forming a solar nebula. Just like a dancer that spins faster as she pulls in her arms, the cloud began to spin as it collapsed. Eventually, the cloud grew hotter and denser in the center, with a disk of gas and dust surrounding it that was hot in the center but cool at the edges. As the disk got thinner and thinner, particles began to stick together and form clumps. Some clumps got bigger, as particles and small clumps stuck to them, eventually forming planets or moons . Near the center of the cloud, where planets like Earth formed, only rocky material could stand the great heat. Icy matter settled in the outer regions of the disk along with rocky material, where the giant planets like Jupiter formed. As the cloud continued to fall in, the center eventually got so hot that it became a star, the Sun, and blew most of the gas and dust of the new solar system with a strong stellar wind. By studying meteorites, which are thought to be left over from this early phase of the solar system, scientists have found that the solar system is about 4,600 million years old!
this is the web site that i got it from
http://www.windows.ucar.edu/tour/link=/our_solar_system/formation.html
our solar system was formed by when a bunch of stars meant in space and they grouped together and our planets came about and now here we are
by the way, i did the question of the week.. on paper again.. o joy.. now thanx to u, i have had that song stuck in my head since u asked if i had it.. >:^]
One theory of how the solar system originated was by a cloud of dust and gas that was disturbed. It started to get pulled into a spinning rotation, and it became hotter and denser. This is one theory of how the solar system was created.
The most accepted hypothysis is the condesation theory which says that our system may have formed from a stars nebula when some humongous star outside of our solar system that had at least double if not triple the mass of the sun went supernova which would have sent that stars mass outward into space this may have happened billions of years ago.
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