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Earth in the Universe

In this worksheet, students look at the place of Earth in the Universe and the other planets and objects in our Solar System.

'Earth in the Universe' worksheet

Key stage:  KS 4

Curriculum topic:  Physics: Space Physics

Curriculum subtopic:  Features of the Solar System

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

You will already know about how vast the Universe is, as well as the Sun and the different planets that orbit it.

The Earth is part of our Solar System, a group of planets that orbit the Sun. The Sun is the only star in our Solar System, but there are many more stars in our galaxy: the Milky Way.  Stars are very hot and produce their own light. There are many more galaxies beyond the Milky Way and other groups of stars in them.

 

The Earth has its own satellite called the Moon. Below is a diagram of our Solar System:

 

 

 

Pluto is no longer considered a planet due to its size and its changing orbit around the Sun. Apart from the planets and their moons, there are other objects in the Solar System, like asteroidsmeteors, comets and meteorites

 

Comets have elliptical orbits, They pass inside the orbit of Mercury and then reach way past Pluto. They are made of ice filled with dust and rock and have a tail of debris. Asteroids are similar but do not have a tail. Meteors are made of dust grains, which burn up as they come into the Earth's atmosphere. Meteorites are larger rocks which do not burn up. When objects like these pass near the Earth's orbit we call them near-Earth objects (NEOs). 

NEOs and other objects of the Universe can be seen with telescopes. Scientists have sent manned and unmanned spacecrafts into space to study it and look for the possibility of life outside Earth.

 

Now we will answer some questions on Earth in the Universe.

What is the name of the place in the Universe that includes the Sun and the Earth?

What is the name of our galaxy?

the Universe

the World

the Milky Way

Is the following statement true or false?

 

Our galaxy is the only one in the Universe.

true

false

Is the following statement true or false?

 

Planets produce their own light.

true

false

What is the name of the Earth's satellite?

Pluto

the Moon

Hubble

Which other objects are in the Solar System apart from the Earth and the Sun? Tick three boxes.

other galaxies

comets

meteorites

black holes

UFOs

meteors

What type of orbits do comets have?

orbital

elliptical

circular

What are comets made of? Tick two boxes.

a chunk of ice filled with dust and rock

large rocks

a tail of debris

small rocks

What is used to see objects in the Universe in more detail? 

normal eyesight

magnifying glass

telescope

What NEOs are large and do not burn up in the Earth's atmosphere?

meteorites

meteors

shooting stars

  • Question 1

What is the name of the place in the Universe that includes the Sun and the Earth?

CORRECT ANSWER
Solar System
the Solar System
EDDIE SAYS
The Earth and the Sun are part of the Solar System. It is best to write the first letters with capital S.
  • Question 2

What is the name of our galaxy?

CORRECT ANSWER
the Milky Way
EDDIE SAYS
Our galaxy is called the Milky Way.
  • Question 3

Is the following statement true or false?

 

Our galaxy is the only one in the Universe.

CORRECT ANSWER
false
EDDIE SAYS
There are many more galaxies in the Universe.
  • Question 4

Is the following statement true or false?

 

Planets produce their own light.

CORRECT ANSWER
false
EDDIE SAYS
Stars produce their own light, but planets receive light from stars.
  • Question 5

What is the name of the Earth's satellite?

CORRECT ANSWER
the Moon
EDDIE SAYS
The Moon is the Earth's satellite, as it is constantly orbiting the Earth.
  • Question 6

Which other objects are in the Solar System apart from the Earth and the Sun? Tick three boxes.

CORRECT ANSWER
comets
meteorites
meteors
EDDIE SAYS
Comets, meteorites and meteors are the other objects within our Solar System. Other stars and black holes exist elsewhere in the Universe, but not within our Solar System.
  • Question 7

What type of orbits do comets have?

CORRECT ANSWER
elliptical
EDDIE SAYS
Comets have elliptical orbits.
  • Question 8

What are comets made of? Tick two boxes.

CORRECT ANSWER
a chunk of ice filled with dust and rock
a tail of debris
EDDIE SAYS
Comets are made of a chunk of ice filled with dust and rock and a tail of debris.
  • Question 9

What is used to see objects in the Universe in more detail? 

CORRECT ANSWER
telescope
EDDIE SAYS
Telescopes are used to see objects in the Universe in more detail, as they magnify the objects hundreds of times making them appear much bigger. At night time, we can normally see the stars and occasionally other planets with our naked eyes, but we cannot see them in great detail. Magnifying glasses are used to make close-up objects appear bigger, not objects that are far away.
  • Question 10

What NEOs are large and do not burn up in the Earth's atmosphere?

CORRECT ANSWER
meteorites
EDDIE SAYS
Meteorites are large pieces of rock that do not burn up in the Earth's atmosphere. Meteors are made of dust grains and they burn up as they enter the Earth's atmosphere.
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