1. Ardrossan Academy Dead Earth
Subtopic – SPACE –
Earth, Moon & sun

2. I will be successful if I can :
Lesson Title:
Earth, Sun & Moon
Learning Intention:.
To understand the movement of the Earth and Moon around the Sun and the effects this causes
Activity: Stellarium software
I will be successful if I can :
Explain how the Moon orbits the Earth as it orbits the Sun, causing the phases of the Moon and the changing seasons

3. DAY & NIGHT The Earth Rotates on its axis once every 24 hours
The side facing the Sun is in daylight - DAY
The side facing away is in darkness - NIGHT
SUNLIGHT
NIGHT
DAY
axis

4. SEASONS Earth’s axis is tilted
In winter we are tilted away from the Sun
short days, cold temperatures
In summer we are tilted towards the Sun
long days, warm temperatures

5. LONGEST DAY June 21st Summer Solstice
Earth’s axis is tilted as far towards the Sun as it can be
Sun does not set anywhere above the Arctic Circle
Arctic circle

6. SHORTEST DAY December 21st Winter Solstice
Earth’s axis is tilted as far away from the Sun as it can be
Sun does not rise anywhere above the Arctic Circle
Arctic circle

7. EQUAL DAY & NIGHT
Two days have precisely 12 hours of day & 12 hours of night - EQUINOXES
September 21st
AUTUMNAL EQUINOX
March 21st
VERNAL EQUINOX

8. THE SUN The Sun is our nearest STAR
It is at the centre of our SOLAR SYSTEM
Earth is 160 million km from the Sun
The Sun is the source of ALL the energy on the Earth

9. THE SUN We get energy from the Sun as - The Sun also emits - LIGHT
HEAT (INFRA RED)
The Sun also emits -
ULTRA VIOLET (UV)
RADIO WAVES
X-RAYS
GAMMA RAYS

10. THE SUN
RADIO UV
X-RAY
Astronomers look at all of these waves to find out more about the sun and other stars.

11. THE MOON The Earth’s only natural satellite
Orbits at a distance of 360,000 km
Orbits every 28 days
Does NOT give off light - it REFLECTS light from the Sun

12. THE MOON Our view of the moon changes during its orbit
The PHASE of the moon depends on how much of the part of the moon we see is illuminated by the Sun

13. ECLIPSES Eclipses happen when the Sun, Moon and Earth line up
There are two types of Eclipse -
SOLAR ECLIPSE -
Sun ‘disappears’
LUNAR ECLIPSE -
Moon ‘disappears’

14. SOLAR ECLIPSE Earth passes into Moon’s shadow.
Moon ‘blocks out’ the Sun
Last happened Mar ‘15

15. LUNAR ECLIPSE Moon passes into Earth’s shadow Moon is ‘blocked out’
Happens several times a year