Page 156 - Knowledge Organiser Yr8 24-25

Knowledge Base: Science 8.13 Space Year 8
7. Moon
7.1
What is a moon?
A large round object that orbits around a planet, it is held in place by gravity.
7.2
Do all planets have the same numbers of moons?
On Earth we have 1 moon. Other planets have more moons. Jupiter has 60 moons.
7.3
How long does it take for our moon to orbit around the Earth?
It takes 27 days and 7 hours to orbit the Earth once.
7.4
The moon doesn’t produce its own light – how can we see it?
Half of the Moon is always lit up by the Sun
7.5
What are the phases of the moon?
As the Moon orbits the Earth, it has different shapes from the Earth
7.6
What is a new moon?
When the side of the Moon facing the Earth is in shadow, you see a New Moon (black)
7.7
What is a full moon?
When the side of the Moon facing the Earth is fully lit by the Sun, you see a Full Moon.
7.8
What are the order of the phases of the moon?
New Moon, Waxing Crescent, First Quarter, Waning Gibbous, Full Moon, Waning Crescent, Last Quarter, Waning Gibbous.
7.9
What is a solar eclipse?
When the Moon comes between the Sun and the Earth it makes a shadow in the Earth’s surface.
7.10
What is a lunar eclipse?
When the Earth comes between the Sun and the Moon we experience a lunar eclipse.
6. Seasons
6.1 What are the 2 hemispheres?
6.2 What separates the 2 hemispheres?
6.4 What are the 4 seasons?
Northern & southern
The equator
spring, summer, autumn, winter.
6.3
What is the equator?
an imaginary line that goes around the middle of a planet.
6.5
Why do we have seasons?
because the Earth is tilted on an axis and it is orbiting around the Sun.
6.6
If the northern hemisphere was tilted towards the Sun, what season would it be?
Summer
6.7
If the northern hemisphere was in Summer, what season would the southern hemisphere be in?
Winter
6.8
If the southern hemisphere was tilted away from the Sun, what season would it be?
Winter
6.9
Why is it hotter in the summer?
Because he Sun’s rays are spread over a much smaller area
6.10
Why are the days longer in the summer?
Because he Sun’s rays can reach the surface of that hemisphere for longer
6.11
Why is it colder in the winter?
Because the Sun’s rays are spread over a much larger area.
6.12
Why are the days shorter in the winter?
Because the Sun’s rays reach the surface of that hemisphere for less time
6.13
Why do the poles of the Earth have extreme day lengths during the different seasons?
Because of the tilt of the Earth
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