Rotary Club of Coral Gables presents a lecture on "The River Amazon: Its Water and Its World," by Michael McClain, professor at Florida International University's Department of Environmental Studies. 12:15 p.m. Country Club of Coral Gables, 997 N Greenway Dr., Coral Gables. $24. Details: (305) 441-8063.
The Minority Chamber of Commerce presents Government Latino Career Expo Miami, a federal, state and local government job fair. 2 p.m.-7 p.m. Sheraton Miami Mart Hotel, 711 NW 72nd Ave. Free. Details: (786) 260-1965.
Steppin' Out for Kids Fundraiser is a fundraising event to benefit Communities in Schools. The event includes silent and live auctions, entertainment and reception. 7 p.m.-9:30 p.m. at 4141 NE Second Ave., Miami Design District. Free Next in Line members and supporters of Communities in Schools; $20 non-members. Details:(305) 333-7105 or (305) 252-5444.
Women's Fund of Miami-Dade County hosts Power of the Purse: Part II, an annual luncheon and silent auction of 100 designer purses donated by international artisans and designers. Proceeds benefit Women's Fund of Miami-Dade County. 11 a.m. Hilton Miami Downtown, 1601 Biscayne Blvd., Miami. $125. Details: (305) 441-0506.
Florida International University presents a lecture on "Remote Observing," by FIU research astronomer James R. Webb. 8 p.m. University Park Campus, Physics Building, CP-145, 1200 SW Eighth St., Tamiami. Details: (305) 661-1375 or www.scas.org.
In celebration of Earth Day, Miami Metrozoo hosts Party for the Planet. 11 a.m.-4 p.m. 12400 SW 152nd St. Details: (305) 251-0400.
Rotary Club of Coral Gables presents a lecture on "Coral Gables: A World Class Destination for Visitors," by Mark Trowbridge, president/CEO Coral Gables Chamber of Commerce. 12:15 p.m. Country Club of Coral Gables, 997 N Greenway Dr., Coral Gables. $24. Details: (305) 441-8063.
The American Jewish Committee 2008 Judge Learned Hand Award Dinner honors Richard J. Lampen, president and CEO of investment banking and brokerage firm Ladenburg Thalmann Financial Services. Also featured is guest speaker Howard M. Sachar, professor emeritus of modern history, George Washington University. 6 p.m. Hilton Miami Downtown, Symphony Ballroom, 1601 Biscayne Blvd., Miami. RSVP required. $350-$25,000. Details: (305) 670-1121.
LUNCHEON AND FASHION SHOW
2008 Women's Committee of Big Brothers Big Sisters Miracle Makers Luncheon & Fashion Show. 11 a.m. reception and silent auction; noon fashion show and luncheon. The Biltmore Hotel, Country Club Ballroom, 1200 Anastasia Ave., Coral Gables. RSVP by today (4/17). Limited seating. $150-$1,000. Details: (305) 644-0066, Ext. 294.
South Florida Urban Ministries presents the fifth annual Black Tie & Blue Jeans Benefit Dinner & Auction. 6 p.m. The Rusty Pelican, 3201 Rickenbacker Cswy., Key Biscayne. $100. Details: (305) 442-8306.
HEART OF CHEF
Heart of a Chef is a culinary event benefiting Florida Heart Research Institute. Ends April 27. Jungle Island, 1111 Parrot Jungle Trail, Watson Island. Details: (305) 674-3020 or www.heartofchef.org.