Physics P9 and P10

For P9 you need to make a scale model of the solar system on an A3 poster. Make the sun 10mm across, then use inches for the size of the planets and metres for the distance from the sun. Write this information on your poster, with a diagram like the one shown below.
For P10, you need to explain what the Big Bang was. You also need to give two pieces of evidence to support the theory.