Have fun with science at home! Mad Science online classes bring science to you, and are designed for ages 5-12 (kindergarten through 6th grade). These interactive classes make science learning super fun for your children. Only one child per household needs to be registered. Classes are $10 for one class, or $7.50 per class when you register for 2 to 4 classes, and just $6 per class when you register for 5 or more classes. Themes include Mad Mixtures, Optical Illusions, Under Pressure, Kitchen Chemistry, Dry Ice Capades and more. Classes take place via Zoom from 2 to 2:45 p.m.

Learn more and register at stlouis.madscience.org

Although the Saint Louis Zoo is closed to the public, the animal care team is sharing photos and videos of the animals and lots of information about the zoo your kids are sure to love! You'll learn about Hippo Harbor, what zoo volunteers do, the Children's Zoo (and the goats!), zebras, antelopes, stingrays, visit the insectarium, and lots more. 

Celebrate the 50th anniversary of Earth Day with the Gateway Region YMCA, along with educators from NOVA and the National Museum of Natural History. 

Since you can't visit the St. Louis Aquarium right now, do the next best thing and watch live as the aquarium brings its habitats to you! Take a dive and explore Shark Canyon, The Mississippi and Missouri Riover Confluence, the Ray habitat and lots more. 

Catch the live stream from 10 to 11 a.m. on the St. Louis Aquarium's Facebook page. 

Return to Hogwarts once more and explore the science of our favorite wizarding world. Shop from local artists and crafters, journey through the building on a special mission, and learn how chemistry connects to Harry Potter with special guest Dr. Rebecca Lai. See Harry Potter and the Order of the Phoenix at the end of the evening.