Transcript Solar System File - Watford Grammar School for Boys Intranet

7L The Solar System and beyond
7L
The Solar System
and beyond
Time on Earth
Views from the Earth
Beyond the Earth
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7L The Solar System and beyond
Time on Earth
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7L Time on Earth – Four seasons
Which season is shown in each picture?
What do you know about the temperature and
number of daylight hours in each season?
Why do we have different seasons?
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7L Time on Earth – Days, years and seasons
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7L Time on Earth – True or false
True or False?
2.
3.
4.
5.
6.
8.
7.
10.
As
The
There
InIfthe
During
When
winter
the
Sun
is
itrotating
Earth
one
summer
is
more
appears
the
winter
complete
highest
was
daylight
Earth
at
in
not
to
the
Australia,
move
position
moves
tilted
orbit
South
in rotate
our
of
across
ataround
Pole
the
summer
of
an
the
the
axis
Sun,
northern
the
there
Sun
the
there
sky
because
the
Sun,
is
ineach
Earth
daylight
hemisphere
the
would
the
sky
day
at
rotates
angle
be
this
is
for
no
lower
24
time
is
of
about
seasons.
hours.
positioned
the
than
of
the
itsin
9.
Earth
rotated
about
its
axis,
our
days
would
be
longer.
1.
time
for
the
Earth
to
about
its
isbecause
called
athan
year.
2.
6.IfThe
8.
During
In winter
During
one
summer
the
complete
highest
atfaster
theposition
orbit
South
of the
Pole
ofonce
the
Sun,
there
Sun
the
is
inEarth
daylight
theaxis
sky
rotates
is
for
lower
24
about
hours.
its in
axis
Earth’s
Earth
year
summer.
At
towards
the
365
the
is
same
axis
orbited
the
northern
times.
changes.
Sun.
time
bythe
hemisphere
theNorth
Sun. Pole
is positioned
has daylight
away
for 24
from
hours.
the Sun.
axis
summer.
At
the
365
same
times.
time the North Pole has daylight for 24 hours.
TRUE! Days
FALSE!
on Earth
would
be its
shorter
if our every
planet24
rotated
FALSE!
The
Earth
rotates
about
axis
once
hours,
TRUE!
FALSE!
It’s
the
Earth
that
orbits
the
Sun
and
that’s
why
the
Sun
TRUE! When
During
the
our
South
summer
Pole
the
has
northern
daylight
hemisphere
for
24
hours,
is
the
North
FALSE!
The
Earth’s
axis
is
always
tilted
at
the
same
angle
(23.5).
faster
about
its
axis.
which
is
one
day.
appears
move across
the
sky.
Pole
has to
night-time
for 24
hours.
positioned
towards
the
Sun.
Click on the
box to start the quiz
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7L The Solar System and beyond
Views from the Earth
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7L Views from Earth – Seeing objects in space
How are we able to see objects in space?
Stars, like our Sun, are
sources of light. We see
them because they give
out there own light.
A source of light, like a star,
is called a luminous object.
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The Moon is not a
source of light. We only
see the Moon because it
reflects the Sun’s light.
The Moon is an example of
a non-luminous object.
7L Views from Earth – Seeing objects in space
Decide which of these objects are luminous and non-luminous.
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7L Views from Earth – The Moon
The Moon is called a “natural satellite” because it is not
man-made and moves around the Earth.
We only ever see one side of the Moon, but does
the Moon always look the same from Earth?
Our view of the Moon changes in a regular pattern
as it moves around the Earth.
This pattern is called the phases the Moon.
Why do we see the same pattern each month?
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7L Views from Earth – Phases of the Moon
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7L Views from Earth - Shadows and eclipses
Light travels in straight lines.
What will happen when the torch is switched on?
Eclipses are caused by shadows.
Can you name two types of eclipses viewed from Earth?
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7L Views from Earth – Lunar and solar eclipse
Eclipses depend on the different positions of the Sun,
the Earth and the Moon.
A lunar eclipse occurs when the Moon moves into the
Earth’s shadow.
A solar eclipse occurs when the Moon’s shadow
moves across part of the Earth.
How is daylight affected during a total solar eclipse?
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7L Views from Earth – Lunar eclipse
During
Duringa alunar
lunareclipse
eclipsethe
theMoon
Earthisblocks
on thethe
opposite
Sun’s
Where must thelight
Moon
bereaching
for
a lunar
eclipse
side
from
of the
Earth
to the
the
Moon.
Sun. to take place?
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7L Views from Earth – Solar eclipse
During
During
a solar
a solar
eclipse
eclipse
thethe
Moon
Moon
moves
blocks
directly
the
Where must
Moon
bereaching
for
solar
eclipse
take place?
Sun’sthe
between
rays
from
the
Suna and
part
the
of
Earth.
the to
Earth.
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7L The Solar System and beyond
Beyond the Earth
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7L Beyond the Earth – The Solar System
The Solar System is the collection of planets, moons and
all the other objects that move around the Sun.
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7L Beyond the Earth – The Solar System
Ancient astronomers observed the movements
of the planets and thought they were wandering stars.
In ancient Greece these heavenly objects were
called “planētes” meaning “wanderers”.
We now know that the planets are not stars.
What is the difference between how can we see
planets and how can we see stars?
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7L Beyond the Earth – Order of the planets
You need to know the
order of the planets in the
Solar System.
One way to remember
is to think of a mouse
and his nine pizzas!
Mars
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
My
Very
Excited
Mouse
Just
Squeaked
Under
Nine
Pizzas
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7L Beyond the Earth – Planetary distances
Draw a scale diagram showing the relative distances
of the planet from the Sun. Use the distances in
astronomical units with a scale of 1 centimetre = 1 AU.
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7L Beyond the Earth – Name that planet
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7L Beyond the Earth – Universe challenge
1. A lunar eclipse can also be called an eclipse of the…
a) the Sun.
b) the Earth.
c) the Moon.
2. A solar eclipse happens when the Moon moves…
a) into the Earth’s shadow.
b) between the Earth and the Sun.
c) between Mars and the Sun.
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7L Beyond the Earth – Universe challenge
3. The Solar System started out as a big ball of dust.
When did the Solar System begin to form?
a) 8,000 years ago.
b) 2.3 million years ago.
c) 4.5 billion years ago.
4. The asteroid belt is found between the orbits of
which two planets?
a) Jupiter and Saturn.
b) Earth and Mars.
c) Mars and Jupiter.
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7L Beyond the Earth – Universe challenge
5. The closer a planet is to the Sun…
a) the more moons it has.
b) the longer its year.
c) the shorter its year.
6. What is the heaviest object in the Solar System?
a) The Earth.
b) Jupiter.
c) The Sun.
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7L Beyond the Earth – Universe challenge
7. Scientists who study the Solar System and the
Universe are called…
a) astrologers.
b) astronomers.
c) Australians.
8. A galaxy is made of millions of stars.
Our Solar System is part of a galaxy called…
a) the Milky Way.
b) the Cheesy Way.
c) Andromeda.
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7L Beyond the Earth – Universe challenge
9. How wide is our galaxy?
a) 900, 000 centimetres.
b) 900, 000 light years.
c) 900, 000 inches.
10. The millions of galaxies and the space between
them form…
a) a very big bar of chocolate.
b) the asteroid belt.
c) the Universe.
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