What is the universe and what is it made from?

In this lesson, we will investigate what the universe is. We will also discuss galaxies, including the galaxy we are in: the Milky Way. Finally, we will discuss and investigate the Big Bang Theory as an explanation for how the universe began.

What is the universe and what is it made from?

In this lesson, we will investigate what the universe is. We will also discuss galaxies, including the galaxy we are in: the Milky Way. Finally, we will discuss and investigate the Big Bang Theory as an explanation for how the universe began.

Lesson details

Key learning points

  1. Describe what we mean by the universe
  2. Describe what a galaxy is, including the Milky Way

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
When stars are formed, gravity pulls what two things together?
Dust and rock
Correct answer: Gas and dust
Rock and gas
Q2.
Initially, a star uses which of these to keep shining and giving light?
Carbon Dioxide
Helium
Correct answer: Hydrogen
Oxygen
Q3.
After it runs out of that element, a star becomes bigger and changes colour to...
Brown
Orange
Correct answer: Red
Yellow
Q4.
Dwarf stars are much smaller and do not burn as brightly. Which of these colours can they NOT be?
Correct answer: Blue
Brown
Orange
Red

4 Questions

Q1.
What is larger?
A galaxy
A solar system
Correct answer: The universe
Q2.
Which galaxy are we in?
Andromeda Galaxy
Correct answer: The Milky Way Galaxy
The Solar System
Whirlpool Galaxy
Q3.
Which of these is NOT one of the discoveries that led to the creation of the Big Bang Theory?
Every part of space seemed to have some heat in it as if there was an explosion that happened a lot time ago and the heat was left over.
Galaxies seemed to be getting further and further away and therefore the universe must be expanding.
Correct answer: Scientists heard an extremely loud noise in our universe which led them to believe there was an explosion.
Q4.
The Big Bang Theory suggests that ...
... a galaxy exploded and created all other galaxies, thus forming the universe.
Correct answer: ... all matter that ever existed began in a single point that suddenly exploded outwards.
... our universe is expanding because there will be an explosion in the future.

Lesson appears in

UnitScience / Space

Science