Download - The earth and the universe
The Earth and the universe. Session 1
OBJECTIVES
• To understand that the universe is made of celestial
bodies and the space.
• Distinguish among stars, galaxies and constellations.
• To know the Milky Way.
The Big Bang Theory says that all the matter in the universe was once together in one place. Then the matter exploded and billions of particles travelled in all directions. Later, these particles formed the different celestial bodies.
CELESTIAL BODIES
This is a star.
This is a planet.
This is a satellite.
THE SUN.
THE EARTH.
THE MOON.
A star is a spherical celestial body. It’s made of gases and it produces enormous quantities of light and heat .
We can classify stars by their colour and size :
Stars can be white, yellow, red or a combination of those colours. For example, the Sun
is a yellow star.
A large star is called a giant. A small star, like the Sun, is
called a dwarf.
COLOUR SIZE
The Sun is the closest star to the Earth.
A galaxy is an enormous group of stars and other celestial bodies. They look like clouds .
The universe contains billions of galaxies. One of these galaxies is the ‘Via Lactea’ or Milky Way. Our sun is a star in the Milky Way, so we are in this galaxy.
Galaxies have got different shapes: elliptical, spiral and irregular.
elliptical spiral irregular
The Milky Way is a spiral galaxy.
Constellations are groups of stars that have particular shapes .
Let’s watch a video about constellations!
The Earth and the universe. Session 1
THE
UN
IVER
SE
CREATION THE BIG BAN
THEORY
ELEMENTS CELESTIAL BODIES
STARS: Like the Sun
They produce light and heat.
They are classified by colour and shape.
PLANETS: Like the Earth
SATELLITES: Like the Moon
OTHERS: comets, asteroids, meteorites… SPACE
ORGANIZATION
GALAXIES Clouds of stars.
Elliptical
Spiral: The Milky Way is our galaxy.
Irregular CONSTELLATIONS They are named according to people’s imagination.
SESSION 2
The Earth and the universe. Session 2
OBJECTIVES
• To know the parts of the solar system.
• To recognise some
characteristics of the Sun.
SESSION 2
The Earth and the universe. Session 2
OBJECTIVES
• To know the parts of the solar system.
• To recognise some
characteristics of the Sun.
• Distinguish among planets, satellites and dwarf planets.
Our solar system is a planetary system of the Milky Way Galaxy.
Our solar
system includes
the Sun
planets and satellites
Our solar system is a planetary system of the Milky Way Galaxy.
Our solar
system includes
the Sun
planets and satellites
dwarf planets
Our solar system is a planetary system of the Milky Way Galaxy.
Our solar
system includes
the Sun
planets and satellites
dwarf planets
other celestial bodies
The Sun is a huge sphere that produces light and heat , as all stars do.
The Sun is much LARGER than the Earth.
The Sun is a huge sphere that produces light and heat , as all stars do.
The Sun is much LARGER than the Earth.
Living things exist thanks to the light and heat that the Sun produces.
The Sun is a huge sphere that produces light and heat , as all stars do.
The Sun is much LARGER than the Earth.
Living things exist thanks to the light and heat that the Sun produces.
SUN
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system:
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system:
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system:
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system:
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system.
Natural satellites are smaller celestial bodies that revolve around planets. They don’t produce their own light .
Planets are large spherical bodies that revolve around a star. Planets don’t produce their own light.
There are 8 planets in our solar system.
Natural satellites are smaller celestial bodies that revolve around planets. They don’t produce their own light .
The Moon is the natural satellite
of the Earth.
Other celestial bodies in our solar system: - Asteroids are bodies of rock, but they are smaller than planets. The majority of the are part of an ‘asteroid belt’ between Mars and Jupiter.
Other celestial bodies in our solar system: - Asteroids are bodies of rock, but they are smaller than planets. The majority of the are part of an ‘asteroid belt’ between Mars and Jupiter.
- Comets are bodies of rock and ice . They revolve around the Sun in very long orbits. When comets come near the Sun, they produce a bright tail of water and gas.
Halley’s comet appeared in 1986. The next time it makes an appearance will be in 2061.
Other celestial bodies in our solar system: - Asteroids are bodies of rock, but they are smaller than planets. The majority of the are part of an ‘asteroid belt’ between Mars and Jupiter.
- Comets are bodies of rock and ice . They revolve around the Sun in very long orbits. When comets come near the Sun, they produce a bright tail of water and gas.
Halley’s comet appeared in 1986. The next time it makes an appearance will be in 2061.
- Meteorites are small pieces of rock from asteroids and comets that travel through space. When meteorites enter the Earth’s atmosphere, they burn and produce a bright tail of light. They are also called shooting stars.
The Earth and the universe. Session 2
Order these planets by their distance from the Sun, from the closes to the farthest. 1
Mars – Jupiter – the Earth Uranus – Venus - Saturn
Copy the true sentences into your notebook. 2 a) Asteroids are celestial bodies with a bright tail. b) Meteorites are parts of asteroids that travel
through space. c) The largest planet in the solar system is
Jupiter. d) Mercury is the farthest planet from the Sun.
Correct the false sentences from exercise 2. 3
SESSION 3
The Earth and the universe. Session 3
OBJECTIVES
• The movements of the planet Earth.
• The effects of the Earth’s
rotation.
• To know how the seasons are caused.
SESSION 3
The Earth and the universe. Session 3
OBJECTIVES
• The movements of the planet Earth.
• The effects of the Earth’s
rotation.
• To know how the seasons are caused.
SESSION 3
The Earth and the universe. Session 3
OBJECTIVES
• The movements of the planet Earth.
• The effects of the Earth’s
rotation.
• To know how the seasons are caused.
SESSION 3
The Earth and the universe. Session 3
OBJECTIVES
• The movements of the planet Earth.
• The effects of the Earth’s
rotation.
• To know how the seasons are caused.
- The Earth continually rotates on its axis.
- It takes 24 hours (one day) to make a complete rotation.
- The rotation of the Earth causes day and night.
- The Earth continually rotates on its axis.
- It takes 24 hours (one day) to make a complete rotation.
- The rotation of the Earth causes day and night.
- The Earth continually rotates on its axis.
- It takes 24 hours (one day) to make a complete rotation.
- The rotation of the Earth causes day and night.
- The Earth continually rotates on its axis.
- It takes 24 hours (one day) to make a complete rotation.
- The rotation of the Earth causes day and night.
EXTRA CREDIT QUESTION: In which direction does the Earth spin (rotation), clockwise or
anticlockwise?
The Earth orbits the Sun. We can call this movement ‘revolution’.
It takes 365 days, or one year, for the Earth to orbit the Sun.
The Earth orbits the Sun. We can call this movement ‘revolution’.
It takes 365 days, or one year, for the Earth to orbit the Sun.
The revolution of the Earth and its tilted axis causes the seasons.
Every second, that you sit in this classroom, the
Earth's orbital motion carries you about 30
kilometres through space.
Identify the motion being shown in each of these pictures. Each team must write their answers for each
figure in the form of a question.
Earth
Figure #1 Rotation Revolution
Figure #2
Rotation
Revolution
Planet
Moon
1. The Earth spinning on its axis. Rotation
Revolution 2. Going around a larger body. Rotation
Revolution
Revolution
4. Causes the Earth’s seasons. Revolution Rotation
5. Creates a year.
3. 24 hours. Rotation Revolution
Revolution Rotation
6. The moon going around Earth. Revolution Rotation
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
New Moon
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
New Moon First Quarter
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
New Moon First Quarter Full Moon
The Moon is Earth’s only natural satellite.
It rotates on its axis and orbits the Earth.
It takes about 28 days to make a complete orbit.
The Moon is lit by the Sun. As the Moon orbits the Earth, we see different parts of the Moon. The different shapes we see are called the phases of the Moon.
New Moon First Quarter Full Moon Last Quarter