Q2: Draw a circle concept map and put the word “astronomy” in the center. Complete the map by adding as many concepts that you can think of that deal with the word astronomy. Astronomy
Today’s Objective: I understand the components of the Big Bang Theory.
What Is Astronomy? The study of the universe, the stars, planets, & everything in it.
Great…. But what is the universe?
all matter and energy in space The universe is: all matter and energy in space
How can they see all that?
Light Year: * Unit of distance (not time) * Distance light travels in 1 year * 299, 792, 458 m / s 186,000 mi/s or 6.71 x 108 m/hr
Groups of stars, dust and gases held together by gravity Galaxy Groups of stars, dust and gases held together by gravity
We live in the Milky Way Galaxy
Elliptical Galaxy Makes no sense without caption in book
Irregular Galaxy Makes no sense without caption in book
Galaxy Cluster Makes no sense without caption in book
The Universe is constantly expanding. Hubble’s Law
Raisin Bread Dough Analogy Hubble’s Law: Universe is constantly expanding. Makes no sense without caption in book
Change in color showing how the universe is moving Doppler Shift: Change in color showing how the universe is moving
Amazing!
The Big Bang 13.7 billion years ago Explosion Expanding universe Makes no sense without caption in book
A group of planets, comets, and other bodies orbiting a star Solar System A group of planets, comets, and other bodies orbiting a star
Our solar system: 8 planets, asteroids, moons, comets, & dust
Satellite body that revolves around a planet
Axis: Imaginary line through the center of Earth 23.5 degrees
Rotation: turning of earth counter-clockwise on its axis
Earth revolves around the sun Revolution: Traveling around a center point Earth revolves around the sun Moon revolves around the earth
1600 kilometers per hour Creates time zones A day is the length of time it takes for 1 rotation 23 hours, 56 minutes and 4 seconds
Orbit: The path an object takes around another one Elliptical = oval
How long is a year? 365 Days 6 hours 9 minutes 365.26 days
Leap Year: Adds an extra day every 4 years to make up for the extra time.
problem of the Week
Kahoot.it
Meral made a big discovery about the distance that the star Reese was from the planet earth. What field of science does she study? Astronomy
Doppler Shift Shony analyzed the electromagnetic spectrum and noticed changes in the color of the spectrum. This change is called the _____.
Big Bang Theory Rebecca wondered where the first atom came from. She is not alone with this question. Scientists have tried to explain it using this theory.
Galaxies Cristian discovered these come in many different shapes like spiral, elliptical, and irregular.
Always Expanding Because of the shift in visible light from blue to red, Drake concluded that the universe is always doing this.
Solar system A star named Logan has 6 planets orbiting about her. This is an example of a ___.
Exit ticket Describe how scientists discover information about the universe and its history.