Grade 6: Planets

Alberta Curriculum

the 3 basic shapes to galaxies?

Spiral

Elliptical

Irregular

layers of the Atmosphere?

Troposphere

Stratosphere

Mesosphere

Thermosphere

Solar System made up of?

Our solar system is made up of planets, satellites and asteroids

Which Galaxy is our Solar System part of?

The Milky Way.

Troposphere

Lowest atmosphere

Goes to 15 km above the earth's surface

Where weather happens

Clouds happen

Stratosphere

35 km thick

Ozone Layer is found here

Middle layer

Mesosphere

Middle Layer

35 km thick

Ionosphere starts at the top where Nothern Lights occur

Radio waves can be bounced off the electrons in the ionsphere making satellite communications possible

Thermosphere

Thickest layer - 515 km thick

Top layer

Who was the first person to be on the moon? When/

Neil Armstrong. July 20, 1969

What does the lunar surface contain?

Maria, Craters, and Mountains

Maria

are lunar basins or seas. They are broad and smooth plains. They were formed from hardened lava.

Craters

are impressions on the moon's surface. They are round with rugged rims. They are formed when meteorites impact upon teh moon's surface.

Mountains

are mountains on the moon. The tallest mountain in 1,930 meters tall.

What is the earth's satellite

it is the moon. it travels around the earth

How small/large is the moon?

it is 4 times as small as the Earth

Does the moon have gravity?

Does it have atmosphere?

Does it have weather?

It has a weak gravitational pull.

It has lost its atmosphere.

It has no weather.

Can life exist on the moon?

Life cannot exist here. It has no surface water or air.

What is the period of rotation and the period of revolution of the moon?

They are both 27 days.

What does the moon reflect?

it reflects the light of the sun.

it always keeps the same side facing Earth.

How often does the moon rotate on its axis and revolve around the Earth?

it rotates on its axis very 27 1/3 days.

The Order of the planets, from the Sun out are:

(My Very Excellent Mother Just Sent Us Nine Pizzas)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto

What are the Inner Planets?

They are also the Rocky Planets.

4

Mercury, Venus, Earth, Mars

What are the Outer Planets?

They are also the Gas Planets.

5

Jupiter Saturn, Uranus, Neptune, Pluto

What separates the Inner and Outer Planets?

the asteroid belt between Mars and Jupiter.

Similarities of moons of other planets, to our moon

Are called Satellites

Orbit around the planet

Differences of moons of other planets, to our moon

Some are different shapes - not all are speherical (circle shaped)

Some are made up of different materials

Some are different weight and mass

How do we know the Sun is young?

Our sun is a yellow dwarf star which means that is is relatively young.

How old is our Sun?

It is about 5 billion years old.

What does the Sun provide?

It provides sun and light.

direction do we orbit the?

We orbit the sun in an elliptical orbit counterclockwise.

the Sun's temperature?

Is is about 31, 350, 000 degress celcius

How should we view the Sun?

Telescopes and probes help us to view the sun indirectly and safely. Viewing the sun directly is very dangerous.

the four main seasons fo the Northern Hemisphere?

Summer, Fall, Winter and Spring

Date Summer Season begins

June 21

Date Fall season begins

September 21

Date Winter season begins

December 21

Date Spring season begins

March 21

What is the Tilt in summer

Northern Hemisphere towards the sun.

What is the Tilt in Fall

Neither tilted towards or away from the sun

What is the Tilt in the Fall

Northern Hemistphere tilted away from the sun

What is the Tilt in the Sprint

Neither tilted towards or away from the sun.

How are the rays directed in the Summer

Direct.

NOT slanted.

Warm

How are the rays directed in the Fall

Neither direct nor indirect rays.

How are the rays directed in Winter

Indirect rays.

Slanted

Not as warm

How are the rays dircted in Spring

Neither direct nor indirect rays.

When are the EQUINOXES

March 21 (first day of spring) and

September 21 (first day of fall).

What happens on equinoxes

There are 12 hours of sunlight and 12 hours of night

When are SOLSTICES

June 21 (first day of summer) and

December 21 (first day of winter)

What happens on Summer solstice

On June 21, we have the longest day of sunlight and the shortest night.

What happens on Winter solstice

On December 21, we have the shortest day of sunlight and the longest night.

Which hemisphere has the opposite seasons that we do

Southern Hemisphere.

Why do we have seasons

Because of the tilt of the Earth on its axis and the revolution of the axis around the Sun.

How many days does the Earth take to revolve around the Sun and Complete all four seasons

365 days

Why does day and night occur on Earth

It occurs because of the rotation of the Earth on its axis.

hours does the earth take to rotate

it takes 24 hours

Does the earth rotate clockwise or coutnerclockwise.

counterclockwise

from West to East

Makes it look like it rises in the East and sets in the West.

How much of the Earth faces the sun at a time

Only half at a time

The sun's shadows in summer are ...

the longest

The sun's shadow in the winter are ...

the shortest

How can you tell the time of day without a watch in the summer

By looking at the position of the sun the sky and position of the shadow on the ground.

What does it mean if the sun is directly above you

It is noon.

sundial used for

It is used to tell the time.

What does the sundial do

It casts a shadow on the ground that can be used to judge what time it is. When the shadow lines up with the gnomom, it is noon.

our nearest star

it is the sun

How many stars are there in the solar system

millions