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Presentation transcript:

Lesson Essential Question: BELLRINGER: The spinning of Earth on its axis is called: _________ is the movement of one object around another. Lesson Essential Question: What are the causes and effects of the seasons? 1

Complete the “Earth’s Movement in Space” crossword puzzle Today's Activities: Go over bellringer Add new LEQ to SLM Complete the “Earth’s Movement in Space” crossword puzzle Watch Seasons BrainPop Seasons Reading and Demonstration Complete the “Seasons” notes worksheet. 2

WORD SPLASH seasons solstice equinox 3

The spinning motion of a planet on its axis

The movement of one object around another.

What is the calendar? The calendar is a system of organizing time that defines the beginning, length, and divisions of a year.

The Julian Calendar Leap year – adding 1 day to the calendar every 4 years to reflect the actual length of a year. Year = 365.25 days long Normal year = 365 days Every 4 years there needed to be one extra day added to the year. (.25 + .25 + .25 + .25) Add leap day (Feb 29) every 4 years

The Gregorian Calendar Modified leap day rules Year = 365.2425 days long Normal year = 365 days Add leap day (Feb 29) every 4 years Remove one leap day every hundred years Except every 400 years (so 2000 was a leap year!)

Leap Year Adding one day every 4 years (Feb 29) since the year is actually 365.25 days long.

Science Challenge Question 10

Science Challenge Question 11

Science Challenge Question 12

Sunlight Striking Earth’s Surface Near the equator, sunlight strikes Earth’s surface more directly and is less spread out than near the poles.

http://astro.unl.edu/naap/motion1/animations/seasons_ecliptic.html

Label the diagram. Include the following at each position: Earth’s axis, The equator, The light and dark areas of the Earth, The direction of revolution, The names of the seasons

Homework: Thursday, April 27, 2017 None! 18

Science Challenge Question Base your answers to the following questions on the diagram below, which represents an exaggerated view of Earth revolving around the Sun. Letters A, B, C, and D represent Earth’s location in its orbit on the first day of each of the four seasons. Which location in Earth’s orbit represents the first day of fall (autumn) for an observer in New York State? (1) A (2) B (3) C (4) D 19

Science Challenge Question 20

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