Constellations
Other celestial bodies
Space and Earth
The Universe
The Milky Way and the Solar System
The Earth moves
The Moon
Space and Earth
THE UNIVERSE
The Universe has many celestial bodies: galaxies, planetary systems, stars, planets, satellites and asteroids.
THE UNIVERSE
There are two types of celestial bodies.
Planets, satellites, asteroids: they don’t give light. They get light from stars.
Stars: they give light.
STARS, PLANETS AND SATELLITES
THE UNIVERSE
Most astronomers believe the Universe began with a huge explosion called the Big Bang about 14 billion years ago.
THE MILKY WAY AND THE SOLAR SYSTEM
A galaxy is a group of stars and planetary systems. Our galaxy is called The Milky Way.
A planetary system is a star with planets and other celestial bodies that orbit around it. Our planetary system is called the Solar System because the Earth and 7
other planets orbit around a star called the Sun.
tHe 8 planets
CLICK ON any PLANET TO see its name and ITS DESCIRPTION
THE EARTH MOVES. REVOLUTION
The Earth takes 365 days (1 year) to orbit the sun.
The Earth moves around the Sun.This movement is called revolution.
The Earth is tilted. Some parts get more sun and others get less sun.
This produces the four seasons: spring, summer, autumn and winter.
THE MOON.
The Moon is the Earth's satellite.
The Moon also spins and it takes about 28 days to spin.
The Moon goes around the Earth and it takes about 28 days.
So, we always see the same side of the Moon.
THE PHASES OF THE MOON.
Satellites do not emit light.
The Moon looks bright because the Sun shines on it. The Moon moves around the Earth. Sometimes we see all, some, or none of the Moon.
Waxing Moon
Waning Moon
New Moon
Full Moon
THE EARTH MOVES. ROTATION
The Earth spins.This movement is called rotation.
The Earth takes 24 hours to spin once.
This makes day and night.
Mercury
closest
Mercury is the planet to the Sun.
Saturn
giant
Saturn has around it.
rings
Uranus
the coldest
Uranus is planet.
Venus
Venus is the planet (465°C).
hottest
Neptune
the furthest
Neptune is planet to the Sun.
Jupiter
Jupiter is planet.
the biggest
Mars
Mars is called the "red planet".
Earth
Earth is called the "blue planet".
Space and Earth 3º 25-26
Raquel Serrano
Created on April 5, 2026
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Transcript
Constellations
Other celestial bodies
Space and Earth
The Universe
The Milky Way and the Solar System
The Earth moves
The Moon
Space and Earth
THE UNIVERSE
The Universe has many celestial bodies: galaxies, planetary systems, stars, planets, satellites and asteroids.
THE UNIVERSE
There are two types of celestial bodies.
Planets, satellites, asteroids: they don’t give light. They get light from stars.
Stars: they give light.
STARS, PLANETS AND SATELLITES
THE UNIVERSE
Most astronomers believe the Universe began with a huge explosion called the Big Bang about 14 billion years ago.
THE MILKY WAY AND THE SOLAR SYSTEM
A galaxy is a group of stars and planetary systems. Our galaxy is called The Milky Way.
A planetary system is a star with planets and other celestial bodies that orbit around it. Our planetary system is called the Solar System because the Earth and 7 other planets orbit around a star called the Sun.
tHe 8 planets
CLICK ON any PLANET TO see its name and ITS DESCIRPTION
THE EARTH MOVES. REVOLUTION
The Earth takes 365 days (1 year) to orbit the sun.
The Earth moves around the Sun.This movement is called revolution.
The Earth is tilted. Some parts get more sun and others get less sun.
This produces the four seasons: spring, summer, autumn and winter.
THE MOON.
The Moon is the Earth's satellite.
The Moon also spins and it takes about 28 days to spin.
The Moon goes around the Earth and it takes about 28 days.
So, we always see the same side of the Moon.
THE PHASES OF THE MOON.
Satellites do not emit light. The Moon looks bright because the Sun shines on it. The Moon moves around the Earth. Sometimes we see all, some, or none of the Moon.
Waxing Moon
Waning Moon
New Moon
Full Moon
THE EARTH MOVES. ROTATION
The Earth spins.This movement is called rotation.
The Earth takes 24 hours to spin once.
This makes day and night.
Mercury
closest
Mercury is the planet to the Sun.
Saturn
giant
Saturn has around it.
rings
Uranus
the coldest
Uranus is planet.
Venus
Venus is the planet (465°C).
hottest
Neptune
the furthest
Neptune is planet to the Sun.
Jupiter
Jupiter is planet.
the biggest
Mars
Mars is called the "red planet".
Earth
Earth is called the "blue planet".