The Earth’s four seasons By : Rosel Joan E. Vallar 8-Nelson Mandela.

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The Earth’s four seasons By : Rosel Joan E. Vallar 8-Nelson Mandela

The Earth’s four seasons -- What are the earth’s four seasons? - Why do we have four seasons? A. Earth’s motions(rotation vs. revolution) B. Earth’s orientation(inclination of the axis) C. Solstices D. Equinoxes - How have the four seasons influenced our own lives? -What is climate change and why should we be concerned? (overview)

The Earth’s four seasons Summer -between spring & autumn Winter - between autumn and spring Autumn - between summer and winter - also known as “fall” Spring - between winter and summer

Earth’s motions (rotation vs. revolution) Rotation - describes the spinning of the Earth around its axis -causes difference in time Revolution - describes the movement of the Earth over a period of one year

Earth’s orientation

Solstices and Equinoxes Solstice - days when the Sun reaches its farthest northern and southern declinations Equinox - days in which day and night are of equal duration - two yearly equinoxes

Influence of the four seasons on our lives

Climate change - is a change in the distribution of weather patterns - used when the change lasts for an extended period of time

References Images: hottest-day-of-the-year-so-far.html?image=22http:// hottest-day-of-the-year-so-far.html?image= Content: seasons.aspxhttp:// seasons.aspx change-science-zm0z11zkon.aspxhttp:// change-science-zm0z11zkon.aspx revolution/ revolution/