Sit in assigned seats Not wondering around the room Sharpened pencil out, ready to begin

Last Friday we reviewed the rock cycle and how soil is formed. As you know, soil is a mixture of different materials List at least 4 materials that make up soil

 Sediment (weathered rock particles) largest amount  Humus (decomposed organic matter from plants and animals)  Minerals (building blocks of rocks)  Bacteria and fungi (decomposers)  Water  Air

 The process of soil formation takes hundreds of thousands of years

 Soil forms from broken down weathered rock; it mixes with surface materials

 1 st EOG test this Friday, May 23 rd Language Arts  You will take all EOG and MSL tests with your 1 st block teacher  PLEASE LEAVE YOUR PHONES AT HOME  BRING A NOVEL TO READ WHEN YOU ARE DONE

Is to review…..  Rotation and revolution,  how day and night happens,  why we have seasons,  what lunar and solar eclipses are,  and why oceans have high tides and low tides.

Orbit: path the Earth follows as it moves around the sun. The Earth’s orbit never changes!

 Axis = an imaginary line that goes from the North pole to the South pole that the Earth rotates (spins) around. FAKE LINE

 The Earth is tilted on this imaginary axis at 23.5 °

‘Earth’s Rotation on its axis Causes day and night to happen

 1 complete rotation = 24 hours = 1 day on Earth  Sunrise to sunrise, Sunset to sunset  Midnight to midnight, Noon to noon

‘Revolution’ is  The movement of an object around another object  The EARTH revolves around the SUN  The moon revolves around the Earth

 The Earth completes 1 revolution around the sun in 1 year (365 and ¼ days).

 The Earth’s moon completes 1 revolution around the Earth in ~29 days (8 different phases of the moon)

 What causes the seasons to change?  Explain why it is spring in North Carolina and Canada but fall in South America and Australia?

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 The tilt of the Earth’s axis as it revolves around the Earth causes the seasons

summer fall spring winter

 Seasons are opposite in the 2 hemispheres  Summer in the Northern Hemisphere = Winter in the Southern Hemisphere  Remember the intensity of the sun’s radiation!

 Study Jams  ams/science/weather-and- climate/seasons.htm ams/science/weather-and- climate/seasons.htm

Throughout the day, the sun is in different locations in the sky. Which is moving, the sun or the Earth? (circle the right answer)

 Equator : an imaginary line  divides the Earth into Northern and Southern hemispheres  0°latitude

Tropics receive greatest amount of solar radiation  Sun’s rays are direct and most intense here  Temperatures are always hot

Polar Regions receive least amount of solar radiation  Sun’s rays hit at an angle  Temperatures are usually cold

 WINTER SOLSTICE – 1 ST DAY OF WINTER  SUMMER SOLSTICE- 1 ST DAY OF SUMMER  SPRING EQUINOX – 1 ST DAY OF SPRING  AUTUMNAL (FALL) EQUINOX – 1 ST DAY OF FALL

 WINTER SOLSTICE – 1 ST DAY OF WINTER  N. Hemisphere = shortest amount of daylight  SUMMER SOLSTICE- 1 ST DAY OF SUMMER  N. Hemisphere = longest amount of daylight

 SPRING EQUINOX – 1 ST DAY OF SPRING  AUTUMNAL (FALL) EQUINOX – 1 ST DAY OF FALL  Equinox = equal amounts of daylight and darkness

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TIDES: The movement of oceans and seas due to the gravitational pull of the moon and sun Tides are due to gravity! This ocean water movement causes high tides (rise of water) and low tides (fall of water)

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 Coastlines = 2 high tides and 2 low tides each day (24 hours)  Tides are predictable (we know when they will happen)  Tide Tables = list 2 high tides and 2 low tides for coastal regions each day

 Spring Tides = extra high and very low tides  formed when the earth, sun and moon line up in a straight line  Straight line, think S = SPRING TIDES  happens every two weeks during a new moon or full moon.

 Neap Tides= high and low tides with very little change  formed when the earth, sun and moon form a right angle (like a L shape)  Think “L” - ”M” - ”N” in the alphabet  L (Lowest) M (means) N (neap tides)  Neap tides happen during a quarter or three- quarter moon

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An eclipse occurs when one object gets in between you and another object and blocks your view. From Earth, we experience two kinds of eclipses: an eclipse of the Moon and an eclipse of the Sun.

 Lunar Eclipse  When the Earth blocks sunlight from reaching the moon  Earth's shadow falls on the Moon

 Solar Eclipse  When the moon passes between the sun and the Earth  The moon blocks the sun’s light from reaching Earth

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