PhET is a great resource that Ive shared a bunch of times for many years. Just recently, I was browsing the site when I noticed that its
activity search tool now consists of a filter for remote activities. Through this search tool you can find lesson plans created for remote direction and learning. You can combine the remote search filter with any of the other topic, level, and language search filters.
See this short video to see how it works..

More About PhET.
In the following video I demonstrate how to include PhETs science and mathematics simulations in your Google Site. Those of you who enjoy the video will likewise notice that the simulations can also be shared via a direct Google Classroom combination.

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