Planets, asteroids and comets

Formed over 4.6 billion years ago from the collapse of a giant cloud of gas and dust, our Solar System consists of 8 planets, 5 known dwarf planets, and hundreds of thousands of asteroids and comets orbiting around our star, the Sun.

  

  

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Impact Craters on the Moon

The aim of this activity is to look at the impact craters on the Moon and compare them with other impact craters we can see in the Solar System.

Impact Craters on Mars

In this activity, you will use Google Mars to look at impact craters, and compare them to the craters which we see on Earth. 

Measuring impact craters on Earth

In this activity, Google Earth will be used to observe and measure some real impact craters on the surface of the Earth. These craters vary in size from small ( a few hundred  metres) to very large (over 100km).

Toilet Roll Solar System

This activity illustrates the relative distances between objects in the Solar System and the Sun and shows just how immense space really is!

Craters in the classroom

The aim of this activity is to investigate the factors which affect the size of an impact crater on Earth.

Students must plan the experiment, including what variables to change and investigate, before carrying out the experiment in a controlled and scientific manner.

Solar System Taboo

This is a fun way of making the students really think about the different types of objects in the Solar System.

Asteroids, Comets and NEOs - student worksheet

This worksheet is based around the topic of asteroids, comets, NEOs and impacts and aims to help you learn about these objects in the Solar System. The worksheet can be downloaded and printed out for use in the classroom or at home.

A Background in Asteroids, Comets and NEOs

Asteroids

Asteroids are rocky objects which orbit the Sun in our Solar System, but are too small to be considered planets. They are in fact, commonly known as Minor Planets due to their size. The majority of the asteroids in our Solar System orbit the Sun in what we call the ‘Asteroid Belt’. This is located between Mars and Jupiter as can be seen in the diagram below.   read more »

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