Dis forDust storm
A form is the shape of something, or a framework made around the edge of an empty space that then is filled to make a shape. The picture is of some forms about to be filled with concrete to make the floor of a building.
Video: view
A platform is a horizontal surface that is raised up higher than what is around it.
Platforms are commonly used at train stations so you can get into the train easier, and as a stage.
Something is uniform if it is the same everywhere. A wall that is all one color might be described as being a uniform shade of green.
A uniform is also the name given to the clothing all people in an organisation have to wear so they all look similar. People in the military wear uniforms, and many schools require that children wear uniforms.
Uniforms for men and women are often quite different, even in the same organisation.