Reflections on the Solar System

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PARTIDO STATE UNIVERSITY
Goa, Camarines Sur

SCHOOL OF GRADUATE STUDIES AND RESEARCH

REFLECTION PAPER ON
Earth, Moon and Sun

In this topic, I have learned that Astronomy is the study of the moon, stars and other objects in space. Earth’s rotation on its axis causes day and night. One complete revolution of Earth around the sun is called a year and that Earth has seasons because its axis is tilted as it revolves around the sun.

I have also learned that the moon revolves around Earth and rotates on its own axis. The phase of the moon we see depends on how much of the sunlit side of the moon faces Earth. A solar eclipse occurs when the moon passes between Earth and the sun, blocking the sunlight from reaching the Earth and that lunar eclipse occurs when Earth is directly between the moon and the sun, blocking the sunlight from reaching the moon. Tides occur mainly because of differences in how much the moon pulls on different parts of Earth.

If we didn't have a Moon, the global altitude of the ocean would have been different. If you take away the moon, suddenly a lot of water would be redistributed toward the Polar Regions. 

Earth would spin much faster without its orbiting moon. That's because the moon's gravity pulls on Earth's oceans. The moon is largely responsible for the tides. The pull of the moon, and ebb and flow of the tides, puts the brakes on Earth's daily rotation. 

The Moon has been a stabilizing factor for the axis of rotation of the Earth. For this reason, we had much less climatic change than if the Earth had been alone.

Prepared by:

MIRINISA R. CRISPIN
MAED. Science

PARTIDO STATE UNIVERSITY
Goa, Camarines Sur

SCHOOL OF GRADUATE STUDIES AND RESEARCH

REFLECTION PAPER ON
The Solar System

In this topic, I have learned the different discoveries of the early scientists about the solar system. Ptolemy thought that Earth is at the center of the system of planets while Copernicus thought that the sun is at the center of the planets to which Galileo’s observations supported Copernicus’s theory. Kepler discovered that the orbits of the planets are ellipses and Newton concluded that two factors – inertia and gravity – combine to keep the planets in orbit.

We have also learned that the sun’s energy comes from nuclear fusion and that the sun’s atmosphere has three layers: the photosphere, the chromosphere and the corona. Features on or above the sun’s surface include sunspots, prominences and solar flares.

The four inner planets – Mercury, Venus, Earth and Mars- are small and have rocky surfaces. They are often called the terrestrial planets. The four outer planets- Jupiter, Saturn, Uranus and Neptune – are much larger than Earth. Pluto and Charon have solid surfaces and masses less than that of Earth.

Most asteroids revolve around the sun between the orbits of Mars and Jupiter and that comets are chunks of ice and dust that usually have long, elliptical orbits.

Is there life beyond Earth? Earth has liquid water and a suitable temperature range and atmosphere for living things to survive. Since life as we know it requires water, scientists hypothesize that Mars may have once had the conditions for life to exist.

The earth is getting too crowded by the increase in human population so studying the solar system helps to know whether there's life on another planet.

Prepared by:

MIRINISA R. CRISPIN
MAED. Science
PARTIDO STATE UNIVERSITY
Goa, Camarines Sur

SCHOOL OF GRADUATE STUDIES AND RESEARCH

REFLECTION PAPER ON
Stars, Galaxies and the Universe

In this topic, I have learned that astronomers use spectrographs to get information about stars. They also use parallax to measure distances to nearby stars. The main characteristics used to classify stars are size, temperature and brightness.

A star is born when nuclear fusion starts. The length of a star’s life depends on its mass. When a star runs out of fuel, it becomes white dwarf, a neutron...
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