PPT-2.1 Earth rotates on a tilted axis and orbits the Sun.

Earths gravity pulls objects toward the center of Earth No matter where you stand on Earth The direction of down will be toward Earths center As Earth turns so do we Earth rotates around on an imaginary lime running through its center called an axis of rotation. Staudt. , And . Evie. Nix. THE EARTH AND MOON. . . Earth. . Earth is 12,742 kilometers in size.. The Earth has no craters, but has mountains, valleys, hills, and plains.. Position of Ecliptic on the Celestial Sphere. Earth axis is tilted w.r.t. ecliptic by 23 ½ degrees. Equivalent: ecliptic is tilted by 23 ½ degrees w.r.t. equator!.  Sun appears to be sometime . TOP SECRET PROFILE FOR SCIENTISTS ONLY . SIZE . The Earth size is 7,918 & 12,742. The Moon size is 3,476 & 2,159. LANDFORMS. The Earth landforms is mountains ,valleys, hills & ECT…. The Moon is the same as the earth & . Earth and Space. LT: I can define important vocabulary. Credit: Katie Brown, . Shuksan Middle School. Axis . (noun). Definition. : An imaginary line that goes through the center of the earth.. Sentence. We know that the reason we have day and night is because the Earth. rotates.. Rotate means. to turn.. The Earth rotating on its. ______. gives us day and night.. axis. Earth’s axis is. the imaginary line that goes through the center of the Earth.. rotatesaxistakingapproximatelyhourscompleterotation. rotates axis taking approximately hours complete rotation. importantenvironmentalconsequences.Rotationcreatescyclelighttemperature, changes.Rotatio Tilt. Day & Night. What. . is. . tilting. ?. The . earth. . is. . tilted. on . its. axis 23.5 . degrees. .. http://www.bbc.co.uk/science/space/solarsystem/images/earth_tilt.jpg. How . does. _____ water found . underground (groundwater). _____freezing rain (precipitation). 3. _____clouds that block out the sun and form in . layers (clouds0. 4._____process that produces . rain (water cycle 2). Watch the video below and summarize the changes that occur and the cause of the changes.. One Year in 40 seconds. Essential Question:. What are the reasons for the seasons?. Standard:. S6E2c. Relate the tilt of the earth to the distribution of sunlight throughout the year and its effect on climate.. What Is an Orbit?. Johannes . Kepler. discovered in . 1600s . that . planet orbits form . ellipses, . not . circles.. Satellites (natural . or . human-made) orbit Earth as an ellipse.. Elliptical . orbits remain . (spins) on its axis at a tilt of 23.5 degrees. It takes 24 hours to make a whole rotation (purple arrows).. Earth . revolves. (goes around) the sun. It takes 365 days to make a whole revolution (red arrows).. VERNAL EQUINOX. March 20, 2015, is a date that most of us recognize as symbolic of changing seasons. As we welcome spring, people south of the equator are actually gearing up for the cooler temperatures of autumn.. 1What is the Earths axisA an imaginary pole that passes through the center of the EarthB the path that the Earth travels around the sunC the object that hit young Earth long ago causing it to lean ove Stars. On a clear night, how many stars can you see?. 2,000 – 3,000. Why is that?. Light Pollution. Ancient cultures grouped the stars by location and named them after heroes, animals, monsters…..