Join students Sophie, Tomás, Emma, and Marcus during Fifth Period! This STEM comic strip chronicles the exciting and often hilarious adventures of a close-knit group of four friends as they learn about science, technology, engineering, and math from their kooky, inspiring, off-the-wall science teacher, Mr. Kepler. When they're not in class, these kids love to explore the vast world of STEM on their own, launching weather balloons, programming computer games, and cataloging insects, sometimes with unpredictable and highly entertaining results!
Check back on the first and third Friday of every month for a new Fifth Period strip!
The Homework Expedition
When Tomás is in danger of losing credit for an assignment, it’s time to get digging! Figuring it got buried in the depths of his backpack, he enlists Sophie’s help to uncover it with archaeological precision—they can’t do anything to the paper that would call into question its originality! Believe it or not, the layers and layers of scrap paper that Tomás has accumulated are much like sedimentary rock! Why? Because sedimentary rock (one of the three major types of rock—the others are igneous and metamorphic) forms when deposits of rocks, sediment, and soil build up over long periods of time.
Just as Sophie was able guess the age of the undated book report by looking at the (probably really gross) pizza stains on it, geologists who study sedimentary rock in the Earth’s crust use fossils buried in the rock to determine its age. They take studying these rocks very seriously because they contain clues about Earth’s history!
Just think about it!
What are the places around your home where you can use a similar technique to determine the age of an object? Do things in your fridge get pushed back as new things are added? Think about games, movies, toys, and clothes—can you figure out which things you like most based on their placement in the pile?