Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe Size and Scale of the Universe Review Guide 1. I can identify the size of objects in the Universe from the smallest to the largest. Size and Scale – From Smallest to Largest You Earth Sun 865,000 miles in diameter; 8 light minutes & 0.00002 light years from Earth. Solar System Diameter – 7,347,000,000 miles across; 15 light hours & .0017 light years across. Stars in the Milky Way What the Sun might look like among the stars in the Milky Way Galaxy. (Sun is about 26,000 light years from the Center of the Milky Way.) ~1~ Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe Sun Milky Way – Diameter = about 100,000 light years Solar System diameter = .0017 [17 thousandths] light years; Local Group of Galaxies = Spread over 10,000,000 light years Milky Way Galaxy = about 100,000 light years across Solar System diameter = .0017 [17 thousandths] light years; Virgo Galactic Supercluster – Diameter about 110,000,000 light years) (Galactic Supercluster diameter 1,100 times larger than Milky Way; almost 65,000,000,000,000 [trillion] times the Solar System diameter) Local Group of Galaxies = Spread over 10,000,000 light years Milky Way Galaxy = about 100,000 light years across Solar System diameter = .0017 [17 thousandths] light years; ~2~ Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe The Universe – Diameter = 93,000,000,000 light years (Note – The farthest we can see in any direction is 13,500,000,000 light years. We call this the visual universe. Since the universe is expanding the entire 13,500,000,000 years, the actual size of the universe is over 64,000,000,000 light years!) (Universe diameter at least 250 time supercluster diameter; 270,000 times larger than Milky Way; almost 16,000,000,000,000,000[quadrillion] times the Solar System diameter) The Universe – Diameter = 27,000,000,000 light years Virgo Galactic Supercluster – Diameter about 110,000,000 light years Local Group of Galaxies = Spread over 10,000,000 light years Milky Way Galaxy = about 100,000 light years across Solar System diameter = .0017 [17 thousandths] light years; 2. I can identify basic facts about the universe. Space is huge! Space is made up mostly of empty space. All the stuff in the galaxy is very small compared to the empty space. If two galaxies collided, there is so much space between the stars, no stars would collide. The Solar System is very, very small compared to the Milky Way. The Milky Way is very, very small compared to the Local Group. The Local Group is very, very small compared to the Virgo Galactic Supercluster. Everything is very, very small compared to the universe. The Universe in Numbers The Milky Way is 100,000 light-years across and 2,000 light years thick at its center. Our Sun is 30,000 light-years from the center of the Milky Way. There are more than 100,000,000,000 (one hundred billion) galaxies in the universe. Each galaxy has between 100,000,000,000 and 300,000,000,000 (three hundred billion) The Andromeda Galaxy is the nearest galaxy to ours. It is 2,900,000 light-years away and 150,000 light-years across. The Local Group contains 50 galaxies and is 5,000,000 light-years across. ~3~ Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe 3. I can use the speed of light as a measuring standard to describe the distances to objects in the universe. The Speed of Light 186,000 miles per second 300,000 kilometers per second 11,160,000 miles per minute 18,000,000 kilometers per minute 69,600,000 miles per hour 1,080,000,000 kilometers per hour 16,070,400,000 miles per day 25,920,000,000 kilometers per day 112,492,800,000 miles per week 181,440,000,000 kilometers per week 6,000,000,000,000 miles per year 9,650,060,000,000.000 kilometers per year Light Distance from the Sun Light Distance of Planets from the Sun Mercury Venus Earth Mars 3.2 light minutes 6 light minutes 8.3 light minutes 12.7 light minutes Light Distance of Planets from the Sun Jupiter Saturn Uranus Neptune 43.3 light minutes 1.5 light hours 2.7 light hours 4.2 light hours ~4~ Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe 3. I can compare distances between planets using Astronomical Units (AU). Using the data in the Planetary Data Table & the Astronomical Unit [AU] to complete the table below. Planet Distance Distance (miles) (AUs) Mercury 36,000,000 0.4 Venus 67,200,000 0.7 Earth 93,000,000 1 Mars 141,000,000 1.5 Jupiter 484,000,000 5.2 Saturn 886,700,000 9.5 Uranus 1,784,000,000 19.1 Neptune 2,794,400,000 39.5 4. I can compare sizes and distances between objects in the Solar System. Earth Mercury Solar System to Scale Neptune Uranus Saturn aturn Jupiter Mars Venus Sun ~5~ Objective – I can describe the scale of size, distance between objects, and movement of objects in the universe 5. I can order the planets in the Solar System from largest to smallest. Planet Diameter (Miles) Mercury Venus 3,031 7,521 Earth 7,926 Mars Jupiter Saturn Uranus Neptune 4,222 88,845 74,900 31,763 30,779 Solar System by Planet Size (Largest to the Smallest) What if the largest planet was closest to the Sun and the smallest was farthest? What would the Solar System look like? In the table below, order the planets from largest to smallest – largest closest to the Sun, smallest farthest from the Sun. 8. Mercury 6. Venus 4. Neptune 2. Saturn Sun 7. Mars 5. Earth 3. Uranus 1. Jupiter ~6~