The Origin of the Universe and the Earth’s Place in the Solar System

Running head: ASSIGNMENT 1 2019 1
Assignment 1 2019
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ASSINGMENT 1 2019 2
Questions 1.1: The Origin of the Universe and the Earth’s Place in the Solar System
1.1.1
i). The Law of Ellipses: illustrates that the path of all planets about the sun is elliptical with the
sun being located at one focus of the ellipse.
ii). The Law of Areas: illustrates that a line that connects the sun to a planet usually sweeps out
areas in equal time intervals. This law provides a description of the speed at which a planet can
move while it orbits about the sun.
iii). The Law of Harmonies: illustrates that the ratio of the squares of periods of a given two
planets is considered to be equivalent to the ratio of the cubes of their average distances from the
sun. (Hecht, 2019).
1.1.2 Ask students about what they already know about the sun, the moon and the earth
respond accordingly. Then provide a large chart with the sun, the earth and moon with orbits of
the earth and moons labeled. Using the chart explain to learners that the earth rotates on its own
axis as it revolves around the sun. Besides, illustrates to learners that it takes an estimate of 365
days (1 year) for the Earth to make a complete revolution around the sun. Also, give examples
like saying every time a learner has a birthday, the earth is considered to have made a complete
revolution around the sun. Also, inform the learners that the earth makes a complete rotation
when the sun rises every morning. Furthermore, the moon revolves around the earth by giving
examples of phases of moon every month. Categorically, explain that the moon is a natural
satellite which revolves around the earth which is a planet. However, both the moon and the
earth revolve around the sun which is a star.
Question 1.2: Effects of the earth’s movement-orbit and rotation
1.2.1 The revolution of the earth about the sun as it is tilted on its axis causes changes in

ASSINGMENT 1 2019 3
seasons (Rufu, Aharonson, & Perets, 2017). For instance, during summer; the Northern
Hemisphere is considered to be tilted towards the sun thereby getting more direct sunlight at a
higher insolation angle which is associated with higher temperatures. However, during winter;
the Northern Hemisphere is considered to be tilted away from the sun thereby getting less direct
sunlight at lower insolation angle with lower temperatures. On the other hand, during spring and
fall; the earth is considered neither to be tilted towards the sun nor away from the sun thereby
making the Northern Hemisphere to get medium temperatures.
1.2.2 The Occurrence of Seasons on Earth
1.2.2 GRADE 8 A LESSON PLAN
LEARNING AREA: SOCIAL SCIENCES
CONNTENT/CONTEXT: THE OCCURENCE OF SEASONS ON EARTH
DURATION: