What would happen if the world had no matter

My science teacher wants us to write a paragraph imaging what the world would be like without matter, I know matter is basically anything with mass and volume so without matter me would run into the sun, right? HELP!!

Unless you can get off topic those will be short paragraphs: No mater means no air, no water, no rock, no trash, no people = nothing. Only electromagnetic radiation and massless particles such as photons, neutrinos and tachyons, if any. These would dissipate rapidly as they travel at the speed of light or faster = the tachyons, if any. Neil

There wouldn't be a world. There wouldn't be a sun. Both are matter.

There would just be energy in the form of massless particles like photons.