The Most Powerful Signs From the National Student Walkout

People, Protest, Crowd, Public event, Human, Event, Photography, Demonstration, City, Fan,

(Image credit: Getty Images)

On Wednesday, students at schools across the country are walking out of their classes for 17 minutes—one minute for each student killed at Marjory Stoneman Douglas High School in Parkland, Florida, exactly one month ago. Protesters are demonstrating on college campuses and in front of the White House and Congress in Washington.

From elementary school through college, students are speaking up—even during moments of silence—through their powerful signs. Here are just a few of the most stirring protest signs.

See real-time video of walkouts across the country on Snapchat's map.

LOCAL STUDENTS SIT FOR 17 MINUTES IN FRONT OF THE WHITE HOUSE IN WASHINGTON, DC

Protest, People, Event, Public event, Rebellion, Crowd, Tree, Demonstration,

STUDENTS FROM PHILADELPHIA HIGH SCHOOL OF CREATIVE AND PERFORMING ARTS IN PHILADELPHIA, PENNSYLVANIA.

People, Protest, Fur, Event, Public event, Social work, Adaptation, Demonstration, Crowd, People, Protest, Fur, Event, Public event, Social work, Adaptation, Demonstration, Crowd,

STUDENTS FROM HARVEST COLLEGIATE HIGH SCHOOL IN WASHINGTON SQUARE PARK, NEW YORK CITY.

Protest, People, Public event, Demonstration, Event, Rebellion, Crowd, Human, Social work,

LOCAL STUDENTS IN FRONT OF THE WHITE HOUSE IN WASHINGTON, DC.

Protest, People, Rebellion, Public event, Event, Demonstration, Human, Social work, Crowd,

STUDENTS FROM WASHINGTON-LEE HIGH SCHOOL HOLD UP POSTERS WITH PICTURES OF THOSE KILLED IN THE PARKLAND SCHOOL SHOOTING.

Crowd, People, Event, Public event, Stadium, Architecture, City, Sport venue, Audience, Protest,

STUDENTS FROM DC, MARYLAND, AND VIRGINIA IN WASHINGTON, DC.

Protest, Public event, Demonstration, Event, Social work, Crowd,

LOCAL STUDENTS IN FRONT OF THE WHITE HOUSE IN WASHINGTON, DC.

Human, People, Event, Social group, Forehead, Crowd, Protest, Public event, Rebellion, Handwriting,

LOCAL STUDENTS IN FRONT OF THE WHITE HOUSE IN WASHINGTON, DC.

Protest, People, Rebellion, Public event, Event, Demonstration, Social work, Crowd,

STUDENTS IN FRONT OF JACQUELINE KENNEDY ONASSIS HIGH SCHOOL IN NEW YORK CITY.

LEAH ZUNDEL, 15, A STUDENT AT COLUMBINE HIGH SCHOOL IN LITTLETON, COLORADO.

People, Community, Crowd, Protest, Team, Event,

STUDENTS FROM COMMUNITY LINKS HIGH SCHOOL IN CHICAGO, ILLINOIS.

Protest, People, Red, Pink, Rebellion, Public event, Event, Demonstration, Crowd, Forehead,

STUDENTS FROM LEADERSHIP AND PUBLIC SERVICE HIGH SCHOOL IN NEW YORK CITY.

People, Protest, Crowd, Rebellion, Forehead, Demonstration, Event, Public event, Human, Social work,

LOCAL STUDENTS IN LOS ANGELES, CALIFORNIA.

Protest, People, Rebellion, Demonstration, Event, Public event, Crowd, Social work, Banner,

STUART-HOBSON MIDDLE SCHOOL STUDENT JOSEPHINE GUIRE IN WASHINGTON DC.

Protest, Demonstration, Public event, Event, Crowd, Rebellion, Gesture,

STUDENTS IN LOS ANGELES, CALIFORNIA.

People, Protest, Youth, Event, Public event, Demonstration, Human, Crowd, Smile, Student,

STUDENTS IN LOS ANGELES, CALIFORNIA.

People, Youth, Event, Community, Protest, Student, T-shirt, Smile, Team, Crowd,

STUDENTS IN LOS ANGELES, CALIFORNIA.

People, Crowd, Human, Protest, Fun, Event, Demonstration, Team, Student, Art,

STUDENTS AT PROSPECT PARK BANDSHELL IN BROOKLYN, NEW YORK.

Protest, People, Public event, Event, Community, Crowd, Human, Social work, Street, Demonstration,

STUDENTS AT PROSPECT PARK BANDSHELL IN BROOKLYN, NEW YORK.

Protest, People, Green, Community, Human, Fur, Public event, Event, Adaptation, Street,

STUDENTS IN WASHINGTON, D.C.

Protest, People, Rebellion, Crowd, Demonstration, Public event, Event, Social work,

LOCAL STUDENTS IN FRONT OF THE WHITE HOUSE IN WASHINGTON, D.C.

Protest, People, Public event, Community, Rebellion, Event, Demonstration, Social work, Crowd,

LOCAL STUDENTS IN FRONT OF THE WHITE HOUSE IN WASHINGTON, D.C.

Protest, People, Event, Community, Public event, Rebellion, Demonstration, Crowd, Social work, Student,

A STUDENT AT A RALLY AT THE U.S. CAPITOL IN WASHINGTON D.C.

People, Crowd, Human, Protest, Photography, City, Street fashion, Eyewear, Glasses, Art,

STUDENTS FROM MIAMI COUNTY DAY SCHOOL IN MIAMI SHORES, FLORIDA.

Protest, Community, Public event, Event, Youth, Social work, Demonstration, Team, T-shirt, Student,

Megan Friedman is the former managing editor of the Newsroom at Hearst. She's worked at NBC and Time, and is a graduate of Northwestern's Medill School of Journalism.