Motion of the Earth C.B.PRASAD K.V. KHAGAUL

Review What does the solar system consist of? 1) Sun 2) Planets What is at the center of the solar system? 1) Sun 2) Planets 3) Asteroids 4) The natural satellites of the planets 5) Comets 6) Interplanetary dust 7) Meteoroids Sun

Axis An imaginary line which runs through both poles of a planet.

Rotation of the Earth The Earth is spinning upon a central axis. The Earth's axis is tipped over about 23.5° from the vertical. The Earth rotates around once in 24 hours.

Direction of the Rotation In which direction does the earth rotate?

Revolution of the Earth The earth revolves around the sun. The orbit is elliptic. The Earth's tilt stays constant. The Earth completes one revolution in 365 days.

Period of Revolution Planets Period of Revolution Around the Sun Mercury 87.96 Earth days Venus 224.68 Earth days Earth 365.26 days Mars 686.98 Earth days Jupiter 11.862 Earth years Saturn 29.456 Earth years Uranus 84.07 Earth years Neptune 164.81 Earth years Pluto (dwarf planet) 247.7 years

Rotation and Revolution Worksheet Define How many days does each take? Which one goes around an axis or orbit?