earths orbit week

this week in science we talked about the earths orbit. We talked about why it orbits the sun. it has to do with the suns direction and velocity. Also the angle of the earth, at the beginning of the week we also talked about solstice and equinox. they are both involved with the longest and shortest days of the year.
we learned all of this by doing the orbit simulator. this taught us that the earth needs distance velocity and angles to have a correct orbit aroung the sun.
this is good for me to know because this taught me that the earth doesnt just pick a random place in the atmosphere and justy orbit. i learned that i need the angle and the velocity. if it is farther away i need less velocity, closer more velocity.

january 19

this week in science we talked about the tilt of the sun and how it effects the seasons of earth. The winter is caused by the sun be far away from the earth and it being tilted away from the sun. and summer is tilted toward the sun , and revolves closer.
we know this because we did many lunar simulations and regular simulations. also we had demonstrations in class. such as the flashlight shined directly and indirectly on the door.
this is important because now we know how the sun interferes with the earths seasons. and also i never really knew that the sun made up the seasons, i thought it all depended on the earth itself.

astronomy

this week in science class we learned all about the moon, and how it has different phases. in order the phases are new moon,waxing crecent,1st quarter,waxing gibbous,full moon,waning gibbous, third quarter,waning crescent. The moon has different phases because it revolves around the sun.
we learned about this by drawing models of the earth and moon and sun, we lined them up and made them revolve. We also had a person rotate and revolve around a table.
In real life we need to know this because people that live down the shore need to know how the moons force works, with tides and currents. that is how many people drown.