Activate the Theme
Once the installation is complete, your Science-X theme will be ready for use. Now all you need to do is navigate to Appearance > Themes and activate the Science-X theme. After you have done this, you should see there one more theme called Science-X. Find it and just click Activate (if the theme was uploaded via FTP).
Or click Activate right after the theme was installed (if it was installed with Theme Uploader)
After you have done this, you should also see the notification that appears in the left navigation bar of your WordPress admin panel. It requires plugins that need to be installed. Please install and activate all of the required plugins, since they are necessary for the theme to function properly