. March 25. 11 a.m. Demystify the world of engineering for middle schoolers and college-bound students at the annual expo. Volunteers from the engineering community are on hand to discuss their jobs. Colleges and universities also attend. Middle Schoolers can explore a room dedicated to hands-on, age-appropriate engineering experiments. Students who register at the door are eligible to win an iPad. Free. 550 North St. #A, White Plains.
. March 25. 7:30 p.m. Broadway and comedy legend Carol Channing gets her due in "Carol Channing: Larger Than Life," directed by Dori Berinstein with co-writer Adam Zucker. Channing's trademark hair and smile are on display in the film, which chronicles her 90-year career. $8. , 175 Wolfs Ln., Pelham.
. March 26. 9:30 a.m. The Harrison Library gives burgeoning writers the chance to shine with its annual writing contest, which runs through April 29. Children in kindergarten through sixth grade can participate. Stories must be handwritten, doubled space and one-to-three pages long. Prizes are awarded in May. The contest is sponsored by the Friends of the Harrison Public Library. Call the Children’s Room for more information at 914-835-0324. Free. , 2 Bruce Ave., Harrison.
. March 28. 8 a.m. Rockland County is holding its quarterly blood drive in support of Gabrielle DiCarlo, who was diagnosed with a rare cancer. Gabrielle will receive a teddy bear and card signed by donors courtesty of Hudson Valley Blood Services. Donors will have the chance to win Yankee tickets, a Munno’s gift certificate and teeth whitening by Dr. Giglio. Refreshments and lunch will be available to those who donate. Free. , 1 Sanatorium Rd., Pomona.
. March 31. 8 a.m. $5 gets you a delicious pancake breakfast and helps support the Lake Carmel F.D. Explorer Post #2041. The Easter Bunny will be on hand for pictures. $5. A, 115 Independent Way, Brewster.