PhET is a fantastic resource that Ive shared a bunch of times over the years. Recently, I was looking through the site when I discovered that its
activity search tool now consists of a filter for remote activities. Through this search tool you can find lesson plans developed for remote instruction and learning. You can combine the remote search filter with any of the other topic, level, and language search filters.
See this brief video to see how it works..

More About PhET.
In the following video I show how to consist of PhETs science and math simulations in your Google Site. Those of you who view the video will likewise observe that the simulations can also be shared by means of a direct Google Classroom combination.

Lots of the PhET simulations are available to insert into PowerPoint presentations through the use of.
PhETs free PowerPoint Add-in. With the Add-in installed you can browse the offered simulations and place them into your slides. The simulations work in your slide simply as they do on the PhET website.