7th

GOVT SEN. SEC. SCHOOL , SAMANA(BOYS)

Project Topic

ECLIPSE PREPARED BY:

7TH CLASS

(Malkeet Singh, Happy)

In the guidance of

Mrs. Monika Bansal & Mr. Sonu Bansal (Computer Teachers)

INTRODUCTION Eclipse: Eclipses are the shadows formed in nature. The sun, the source of light when throws light rays on opaque objects such as moon the shadows are formed. The shadows cast by the earth and the moon are called Eclipses. We have two types of Eclipse: 1). Lunar Eclipse or Eclipse of the moon 2). Solar Eclipse or Eclipse of the sun

Lunar Eclipse or Eclipse of the Moon: When the earth, the moon and the sun are in the straight line such that the earth is between the sun and the moon cannot be seen because it cannot be illuminated by sun. Shadow of earth on moon causes lunar eclipse.

Occurrence: Lunar eclipse therefore occurs when the light dose not fall on the object (the moon) and it gets completely blocked by an obstacle ( the earth)

Types: 1.

Total lunar eclipse

2.

Partial lunar eclipse

Total lunar eclipse: When the whole moon is in the umbra of the earth it is known as total lunar eclipse.

Partial lunar eclipse: During partial lunar eclipse only a part of moon visible and the part of moon that falls under the umbra of the earth is not visible

Solar Eclipse or Eclipse of the sun: When the moon, the earth and the sun are in a straight line such that the moon is in between the earth and the sun, solar eclipse occurs. Shadow of moon on earth causes solar eclipse.

Occurrence: Solar eclipse therefore occurs when the view of source of light (the sun) is blocked for the observer (on earth) because of an obstacle (the moon) that comes in between the source of light ( the sun) and the observer ( on the earth)

Types: 1. Total Solar Eclipse 2. Partial Eclipse

Total solar eclipse: Total solar eclipse means when people cannot see the sun at all.

Partial eclipse: Partial eclipse occurs when a part of the sun is not visible or when only a part of the sun is visible.