​Earth Sun and Moon

​Earth Sun and Moon

what is solar system

The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies.

what is natural satellite

A natural satellite is any celestial body in space that orbits around a larger body. Moon is called a natural satellite because it orbits planets.

Earth´s Layers

• Crust

• Mantle

• Outer Core

• Inner Core

CRUST

CRUST - is the outermost and thinnest layer of the Earth (around 5 to 70 km deep).

MANTLE

MANTLE is the thickest layer of the earth. The semi-liquid sort of like a malleable plastic and makes up 84% of earth's volume.

OUTER CORE

OUTER CORE - is located beneath the mantle (2,200 km thick). It is made up of hot, molten iron and nickel (up to 5,000°C). This layer spins as the planet rotates and creates Earth's magnetic field, which helps to protect us from the Sun's solar radiation.

INNER CORE

INNER CORE - is the deepest layer of the Earth. It’s about 1,230 to 1,530 km thick and can be as hot as the surface of the sun, about 5505 °C. Like the outer core, it is made up of iron and nickel, but due to high pressure, these metals remain solid. 

Rotation

​Rotate - to spin around a center (axis)

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​Axis - an imaginary line that an object rotates around ​

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​Earth rotates on its axis one time every 24 hours

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Revolution

​Revolve - to move around another object​​

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Orbit - the path that an object takes as it goes around another object​

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Earth revolves around the Sun ​one time every 365 days

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​​The Earth does this around the Sun on its orbital path.

What is an eclipse?

Eclipse

Occurs any time something passes​ in front of the Sun, blocking its light.

• This can be the Earth ​or the Moon

• When the Moon casts a shadow on the Earth, causing the Sun to go dark.

• The Moon comes between the Sun and Earth.

​Solar Eclipse

• When the Earth casts a shadow on the moon, causing the moon to go dark.

• Earth comes between the Sun and the Moon​.

Lunar Eclipse

Types of Eclipses

Lunar Eclipse

Solar Eclipse

Multiple Choice

Day and night on the Earth are caused by

• Rotation

• Revolution

• Tilt of the axis

Multiple Choice

The part of the earth facing away from the sun has

• Day

• Night

• Evening

Multiple Choice

In which layer of the Earth are temperature and pressure greatest?

• Crust

• Mantle

• Outer Core

• Inner Core

Multiple Choice

The fixed path on which the Earth revolves around the sun is called

• Axis

• Orbit

• Equator

Multiple Choice

In the month of December, the South Pole of the Earth is

• Straight

• Tilted towards the Sun

• Tilted away from the sun

Multiple Choice

THE THICKNESS OF THE INNERMOST LAYER OF EARTH IS

• 3500 KM

• 3000KM

• 2000KM

Multiple Choice

What is the MIDDLE layer of the Earth?

• MANTLE

• CORE

• CRUST

Multiple Choice

what is the INNERMOST LAYER of the Earth?

• CORE

• MANTLE

• CRUST

Multiple Choice

What is the OUTERMOST layer of the Earth?

• CORE

• MANTLE

• CRUST

Multiple Choice

True or False: It is possible to drill a mine all the way to the core of Earth?

• true

• False

Multiple Choice

The core is mostly made up mostly of which elements?

• Oxygen and Silicon
• Silicon and Magnesium
• Nickel and Iron
• Iron and Magnesium

Multiple Choice

Which layer is considered the thinnest layer?

• Mesosphere
• Core
• Mantle
• Crust

Draw

draw your face

Multiple Choice

During a lunar eclipse

• Earth's shadow covers the moon

• the sun's shadow covers the moon

• the moon covers the sun

• Earth's shadow covers the sun

Multiple Choice

The position of the Earth, moon and Sun during a lunar eclipse is

• sun--moon--Earth

• Earth--sun--moon

• sun--Earth--moon

• moon--sun--Earth

Multiple Choice

What type of eclipse occurs when the moon blocks the sun's light and cast a shadow on earth?

• solar
• lunar

Multiple Choice

Which eclipse do you need to wear special glasses for?

• Mars Eclipse

• Mercury Eclipse

• Lunar Eclipse

• Solar Eclipse

Poll

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• good

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