September 22 Full STEM Ahead: Home School Science. Kids ages 6 to 14. 10 a.m. to 3 p.m. Enjoy a day of hands-on science with the topics of Trajectory. Students will have a variety of activities to choose from and project complexity will vary, bringing challenges for students of all ages. Try to arrive at the top of an hour, until 2 p.m. Allow at least one hour to complete projects. Non-military must check in at the Navy Yard's Visitor Center (11th and O St.) and present government-issued photo ID. FREE National Museum of the United States Navy, Washington, DC.

September 23 through October 23 Knuffle Bunny: A Cautionary Musical. All ages (family friendly event). Dates and times vary. Trixie and her father bustle through the streets of New York City down the block, across the park, past the school, to the Laundromat. But returning home, Knuffle Bunny is gone, and Trixie can't tell her father what's wrong. Tickets online. $$ Adventure Theatre, Glen Echo, MD.

September 24 Alexandria Symphony Orchestra's Family Fall Fest. All ages (family-friendly event). Noon to 4 p.m. Group performances will occur at the outdoor amphitheater every half hour, featuring both professional and amateur performers as well as children's groups from the community. Activities for kids including a petting zoo of instruments. Family yoga, workshops, demonstration as well as food and refreshments. $$ Fort Ward Park, Alexandria, VA

September 24 12th Annual Autumn Apple Festival. All ages (family-friendly event). 9:30 a.m. to 4:30 p.m. enjoy hands-on children's activities, apple tasting, cider pressing, and demonstrations of historic orchard tools. Celebrate the "American Fruit" by making cider in a historic barn. Fun carnival games and prizes, face painting, crafts and participate in a good old-fashioned cake walk. Event activities are free with regular admission. $$ Loudoun Heritage Farm Museum, Sterling, VA.

September 24 DC VegFest. All ages (family-friendly event). 11 a.m. to 6 p.m. Whether you're looking to improve your health, protect animals, save the planet, or you just want to eat some really good food, this is the place to be! Enjoy dynamic speakers, cooking demos, a kids with a moonbounce, a barking lot for dogs, a beer garden, live music and so much more! FREE Yards Park, adjacent to Nationals Stadium, Washington, DC.

September 24 Flowers Stink. Kids ages 7+. 11 a.m. In this exciting musical at the USBG in collaboration with the Kennedy Center, a girl struggling with writing a nature-themed poem gets some help from two zany and loveable plants who magically come to life. FREE Amphitheatre stage at the U.S. Botanic Garden, Washington, DC.

September 24 & 25 Occoquan Fall Arts & Crafts Show. All ages (family-friendly event). 10 a.m. to 6 p.m. Featuring over 300 arts and crafts vendors from across the country. Plus live entertainment, gourmet foods, kids activities and handmade goods! Rain or shine. FREE Historic Occoquan, Occoquan, VA.

September 25 through 30 Fall for the Book Festival. All ages (family-friendly event). Times vary. Fall for the Book welcomes authors and artists from around the world for several days of readings, discussions, performances and exhibitions at more than 30 venues throughout the DMV. This multiple-venue festival brings together people of all ages and interests. Detailed schedule online. FREE Various locations in the D.C. metro area.

September 25 Maker Faire Silver Spring. All ages (family-friendly event). Noon to 5 p.m. Maker Faire is a unique festival featuring the work of inventors, hackers, crafters, artists, and do-it-yourselfers of all kinds. Projects range from robotics and electronics, to metal working and larger-than-life interactive artwork. Along with musical performances and entertainment, local inventors will present their projects. Come prepared for fun, wacky inventions and serious science innovations. FREE Silver Spring Civic Building, Silver Spring, MD

September 25 Pinkalicious the Musical. All ages (family-friendly event). 2:30 and 4:30 p.m. Pinkalicious can't stop eating pink cupcakes despite warnings from her parents, and eventually develops Pinkititis-an affliction that turns her pink from head to toe! When her hue goes too far, Pinkalicious must find a way out of this predicament. Pinkalicious Cupcake Tea Party at 1:30 p.m. Sensory-friendly performance is at 4:30 p.m. Tickets online. $$ BlackRock Center for the Arts, Germantown, MD.

September 26 Virginia Opera: Tales from Brothers Grimm. All ages (family-friendly event). 10 a.m. Children are sure to enjoy this production of one of the most beloved works in the operatic repertoire, based on the favorite Grimm Brothers fairy tale. This musical spectacle features all of your favorite characters including Hansel, Gretel, Mother, the Sandman, and of course, that wily witch! It's sure to be a "sweet treat" for all who attend! $$ Franklin Park Arts Center, Purcellville, VA.