Lesson Five from Kidseclipse

What happens during a total solar eclipse?

 

The Moon passes over the sun creating a Total Solar Eclipse
The Moon passes over the sun

As the Moon passes between the Sun and the Earth, the Moon begins to block out some of the Sun’s light casting a shadow on the Earth. A small “bite” appears on the western edge of the Sun. The Moon continues to move in front of the Sun, until only a small crescent of light can be seen.

The sky begins to darken as the crescent of the Sun remains in the sky. Thin wavy lines called Shadow Bands appear on plain surfaces on the ground. Shadow Bands are caused by the irregularities in the Earth’s atmosphere.

As the crescent disappears, tiny specks of light are visible around the edge of the Sun. These specks of light are called Baily’s Beads and are the last rays of Sunlight shining through the valleys on the edge of the Moon.

Suddenly the sky is dark, but if you look toward the horizon you will see a reddish glow which looks like a Sunset.

Baily’s Beads are the last rays of Sunlight shining through the valleys on the edge of the Moon
Baily’s Beads are the last rays of Sunlight shining through the valleys on the edge of the Moon

Once the Sun is totally eclipsed, the Sun’s corona can be seen shining in all directions around the Moon. This is a spectacular sight because the only time the Sun’s corona or crown can be seen is during a total solar eclipse.

The sun's corona can be seen shining in all directions around the Moon
The sun’s corona can be seen shining in all directions around the Moon

Also visible during a total solar eclipse are colorful lights from the Sun’s chromosphere and solar prominences shooting out through the Sun’s atmosphere.

Without Sunlight, bright stars and planets can be seen from the areas on earth in the Moon’s umbra.

When the total eclipse of the Sun is completed, the shadow of the Moon passes and sunlight appears once again at the western edge of the Sun. The corona disappears, Baily’s Beads appear for a few seconds, and then a thin crescent of the Sun becomes visible. Daylight returns and the Moon continues to orbit the Earth. The total solar eclipse is over.

Lesson Six from Kidseclipse

What are the Safety Facts?

 

This site has been designed to give your class an overview of astronomy and help them understand why a Total Solar Eclipse can happen. Each section leads with a simple question which is answered through the use of words, pictures, animations and activities. Each section requires approximately 5 minutes, each activity varies.
Dolores Peterson was a New York City School Teacher in Community School District 3 for nine years when she produced this lesson plan for Kidseclipse. She has a Masters in Education from the City University of New York.
Great American Total Solar Eclipse: feautures Jupiter, Bailey’s Bead and Diamond Ring on August 21, 2017, from Murphy, NC. This was a return to where I lived as a teenager and witnessing the Total Solar Eclipse was everything that I had wished for. The crickets started chirping as the sun disappeared and when the diamond ring, bailey’s bead, and Jupiter appeared in the sky, it truly was a magical moment that I will always remember. — ©Mark D Phillips

What are the Safety Facts?