Physical Science Standard #1: Objects are made of one or more materials.
When I think of this standard I think of sedimentary rocks and how they are layered with different materials/types of rocks and build upon each other over time. I would start by bringing in a concrete example of sedimentary rocks for the students to see.
What do you know about this object (rock)?
What do you think it is in it/made of?
How did these materials get here?
How do you think it was made this way?
What are some other objects that are made of one or more materials?
