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Pages

1Where is Mars?2How long will it take to get to Mars?3Getting to Mars4How do rockets get off the ground?5Producing Thrust6What happens when rocket fuel burns?7Your mission to Mars!8Our need for oxygen9How oxygen gets to our cells10The effects of gravity11How low gravity affects bones12Preventing bones and muscles from becoming weak13Living and working in space14What do astronomers know about Mars?15A space-craft view of Mars16Exploring Mars17Energy for exploration18The rocky surface of Mars19More about the surface of Mars20The Martian atmosphere21The importance of water22The water cycle on Earth23Is there water on Mars?24Surviving on Mars25Your Martian home26Farming on Mars27Soil on Mars28Plants for Mars29Getting energy on Mars30Where will you go next?

Practicals

1Modelling the solar system in the school yard2Rocket Practical3Investigate the Energy in Fuels4Making a Telescope5What factors affect the output of a solar cell?6Modelling Diffusion7Examining Slides of Blood8What bones are like without calcium salts9Flame Test to Identify Metals10The Different States of Water11Water Purification for Human Consumption12Factors Affecting Germination13Solar Cells for Devices14Mars Bingo
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The main pathway for oxygen

Re-arrange the three elements below to show the route oxygen gas takes when it moves from air to cells

Oxygen reaching our cells

The paragraph below provides a bit more detail about the diagram you have just completed. Fill in the gaps by typing in the correct word from the list:

Modelling Diffusion

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When inside red blood cells, oxygen is carried on a special molecule. What is it called?
haemoglobin

Examining Slides of Blood

You'll need a microscope!

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When you set off on your mission to Mars, how will you deal with the lack of oxygen in outer space?
You will need an oxygen supply within your spacecraft ( as in this picture).
The lack of air, and air pressure, causes other effects on the human body. Can you suggest what one of these might be?
Without the pressure of air pushing on them, body fluids like blood could start to boil. Usually, however, our blood vessels are strong enough to limit this
Science Resource Image

NASA - Russian cosmonauts Andrey Borisenko (left), Expedition 28 commander; Alexander Samokutyaev (centre) and Sergei Volkov, both flight engineers, are pictured with Russian Elektron oxygen generator systems in the Zvezda Service Module of the International Space Station.