Earth's atmosphere] [information over pictures] [2]

So the atmosphere is a thin layer of gases which surrounds the Earth. It protects us it from harmful radiation from the Sun. It also traps some of the light and heat in what is called the Greenhouse Effect.	The atmosphere is split into 5 layers. Out from the Earth they are the Troposphere Stratosphere Mesosphere Thermosphere Exosphere
In each layer you find different things. Troposphere - planes and Ozone Layer. Stratosphere - weather balloons. Mesosphere - meteors. Thermosphere - Northern Lights. Exosphere - International Space Station.	You can remember these names in order by using a mnemonic [a silly sentence]. The Silly Monkeys Tickled Elephants

Look at all of the pictures in turn. As you hover over each one a blue screen appears with an explanation of what the picture shows. Important words are underlined. If you are certain that you know about the picture click on it and it will disappear. As you go through all of the pictures you will get rid of all those which you know about and be only left with those you may be unsure of. In some cases you may get rid of all of the pictures in which case you are ready to move on to other activities which will test your knowledge on that particular topic.