This Google Doc compiles companies that have announced enhanced or free services to schools as they deal with COVID-19-related closures. Source: https://docs.google.com/document/d/1BQJEQczyMOkG_80RBT2ouROB3ISUe93Yc2jloWvnJXM/preview#heading=h.x2b9p4obo0db
Here are a couple of links to help parents get familiar with Google Classroom and finding learning material online.
This article explores several ways to include lab activity in online science courses. Source: https://ctl.learninghouse.com/expanding-virtual-classroom-making-science-labs-available-online-students/