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Warm-up : Practice Affix Quiz

Warm-up : Practice Affix Quiz. For each definition, write the correct affix. equal, a horse _____________ the sun _____________ For each affix, write a word that contains that affix and use it in a sentence. 3. Uni- ____________________ 4. Tele- ____________________.

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Warm-up : Practice Affix Quiz

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  1. Warm-up: Practice Affix Quiz For each definition, write the correct affix. • equal, a horse _____________ • the sun _____________ For each affix, write a word that contains that affix and use it in a sentence. 3. Uni- ____________________ 4. Tele- ____________________

  2. Warm-up: Practice Affix Quiz For each definition, write the correct affix. • equal, a horse ___equi___ • the sun ___sol ____ For each affix, write a word that contains that affix and use it in a sentence. 3. Uni-There are many galaxies in the universe. 4. Tele-You can look at the stars up close using a telescope.

  3. Warm-up: • Today, what season is it in… 1. Texas? 3. China? 4. Brazil? 2. Australia?

  4. The Reason for the Seasons

  5. Earth is tilted! X Like this!

  6. How Sunlight hits Earth • There are 2 different types of light rays: • Direct rays: hit a flat surface • Indirect rays: hit at an angle (slanted surface)

  7. MINI LAB: Direct vs. Indirect Rays • Did you change the amount of light coming from the flashlight? • Which rays cover more area (light more squares)? • Which rays are stronger (brighter)?

  8. MINI LAB: Direct vs. Indirect Rays • Direct and indirect rays both provide the same amount of solar energy. • Direct rays focus the heat on a smaller area. • Indirect rays spread out the heat over a larger area.

  9. How Sunlight Hits Earth • If Earth wasn’t tilted, we would get the same amount of sunlight all year long SUN

  10. How Sunlight Hits Earth • BUT…because Earth IS tilted, the amount of sunlight we get changes as we revolve around the sun SUN

  11. The type of rays we get depends on which hemisphere is tilted more towards the sun. • Northern Hemisphere tilted toward the sun: • N.H. gets more direct rays (warmer) • S.H. gets less direct rays (cooler) SUN

  12. The type of rays we get depends on which hemisphere is tilted more towards the sun. • Southern Hemisphere tilted towards the sun: • N.H. gets less direct rays (cooler) • S.H. gets more direct rays (warmer) SUN

  13. Earth’s tilt also causes the hours of daylight to change throughout the year. • The hemisphere that is tilted toward the sun gets more hours of daylight. SUN

  14. Earth’s tilt also causes the hours of daylight to change throughout the year. • More direct rays + more hours of daylight = warmer temperatures (summer!) SUN

  15. Earth’s tilt also causes the hours of daylight to change throughout the year. • Less direct rays + less hours of daylight = cooler temperatures (winter!) SUN

  16. Earth’s Orbit Around the Sun Southern Hemisphere is tilted toward the sun Northern Hem.experiences: -shortest day of the year (least hours of daylight) -least direct rays of year Winter Solstice December 21

  17. Earth’s Orbit Around the Sun Winter Winter Solstice December 21

  18. Earth’s Orbit Around the Sun Vernal (Spring) Equinox March 21 Winter Neither Hemisphere is tilted toward the sun Northern Hem.experiences: -equal length of day & night -same amount ofdirect rays as Southern Hemisphere Winter Solstice December 21

  19. Earth’s Orbit Around the Sun Vernal Equinox March 21 Spring Winter Winter Solstice December 21

  20. Earth’s Orbit Around the Sun Vernal Equinox March 21 Spring Winter Summer Solstice June 21 Winter Solstice December 21 Northern Hemisphere is tilted toward the sun Northern Hem.experiences: -longest day of the year (most hours of daylight) -most direct rays of year

  21. Earth’s Orbit Around the Sun Vernal Equinox March 21 Spring Winter Summer Solstice June 21 Winter Solstice December 21 Summer

  22. Earth’s Orbit Around the Sun Vernal Equinox March 21 Spring Winter Neither Hemisphere is tilted toward the sun Northern Hem.experiences: -equal length of day & night -same amount ofdirect rays as Southern Hemisphere Summer Solstice June 21 Winter Solstice December 21 Autumnal (Fall) Equinox September 23 Summer

  23. Earth’s Orbit Around the Sun Vernal Equinox March 21 Spring Winter Summer Solstice June 21 Winter Solstice December 21 Autumn Summer Autumnal Equinox September 23

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