lesson 5 - solar and lunar eclipses · lunar eclipse happens when the earth passes between the sun...

Eclipse, solar, lunar, Sun, moon, reflect

Lesson 5 - Solar and Lunar Eclipses



First task:

What are these phases?

http://www.youtube.com/watch?v=zVHWhLme2NQ

http://www.youtube.com/watch?v=sWCwnms18CM



Crescent moon

Half moon

New moon

Gibbous moon

Solar and Lunar Eclipses

• State what a lunar and solar eclipse is.

• Describe the position of the moon, Earth and Sun during both types of eclipse.

• Explain solar and lunar eclipses using diagrams.


Shadows

• These children are making shadows. But how?

• Use diagrams or writing, or both, to explain how shadows are made.


A Solar Eclipse

http://www.youtube.com/watch?v=iG9GdfL_ToU


A Solar Eclipse

The Moon blocks off light from the Sun.When the Moon moves in front of the Sun it goes dark.


A Solar Eclipse

During a solar eclipse the Moon blocks the Sun’s rays from reaching part of the Earth.


A Lunar Eclipse

Why do we only see and eclipse of the Moon at night?


A Lunar Eclipse

The Moon passes through the Earth’s shadow.The Moon looks red because some light from the Sun bends round the Earth to reach the Moon.


A Lunar Eclipse

http://www.youtube.com/watch?v=lcRp1jKJmJU


A Lunar Eclipse

During a lunar eclipse the Earth blocks the Sun’s light from reaching the Moon.


Eclipses Summary

● A solar eclipse happens when the Moon passes between the Sun and the Earth. This casts a shadow over the Earth.

● The last solar eclipse over the UK was on 11th August 1999. Solar eclipses do not occur very often.

● A lunar eclipse happens when the Earth passes between the Sun and the Moon. This casts a shadow over the Moon.

● Lunar eclipses happen in most years.


Eclipses

http://www.youtube.com/watch?v=rVE8PFYlwSM


Questions

1. Why do eclipses only last a few minutes?2. What causes an eclipse of the Sun (a solar eclipse)?3. What causes an eclipse of the Moon (a lunar eclipse)?4. What would a lunar eclipse look like if you were an

astronaut standing on the Moon?


Answers

1. Why do eclipses only last a few minutes? Because the moon is orbiting

2. What causes an eclipse of the Sun (a solar eclipse)? A solar eclipse happens when the Moon passes between the Sun and the Earth. This casts a shadow over the Earth.

3. What causes an eclipse of the Moon (a lunar eclipse)? A lunar eclipse happens when the Earth passes between the Sun and the Moon. This casts a shadow over the Moon.

4. What would a lunar eclipse look like if you were an astronaut standing on the Moon? Ring of light from the Sun


Task

Use tennis balls, ping pong balls and torches to model both types of eclipse.


Exam questions

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lesson 5 - solar and lunar eclipses · lunar eclipse happens when the earth passes between the sun...

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