You can upload your scratch project files on this page.
The steps to upload your projects are as follows:
1. Become a member of this site
2. Login to your Scratch account on this site
3. Arrive at this page
4. Click the relevant school link below
5. Go to the bottom of the page and click "Files" followed by "Upload new file"
6. Upload your project file from your computer. The name of the file must include your name and class + school name