Hi my son has to do a lighthouse for a school project and it has to really light, I'm not really sure how to go about this project or what materials he will need. Can anyone offer any help

Believe it or not here is a site on how to build a model lighthouse...simple instructions.
http://www.creative-chemistry.org.uk/activities/lighthouse.htm

That's great! The first step is to gather the materials needed for the project. Here's a list of items you will need:

1. Cardboard or foam board: This will serve as the base and structure of the lighthouse.
2. Construction paper or craft paper: You'll need different colors to create the details of the lighthouse.
3. A small battery-powered LED light or a small string of LED lights: These will provide the lighting for the lighthouse.
4. Glue, tape, or a hot glue gun: These will be used to secure the materials together.
5. Scissors: You'll need them to cut the paper and cardboard.

Once you have all the materials ready, you can follow the instructions provided in the link you shared. It will guide you through the steps of building a model lighthouse using the materials you have gathered.

In summary, to make a model lighthouse that lights up, you will need cardboard or foam board, construction paper, LED lights, and glue or tape. The link you provided will give you detailed instructions on how to assemble everything. Good luck with your son's project!