CommonLit is a free collection of fiction and nonfiction for 3rd-12th grade classrooms. Search and filter our collection by lexile, grade, theme, genre, literary device, or common core standard.
Scientists confirm ‘greenhouse’ effect of human’s CO2
Thomas Sumner discusses a study on the effects of CO2 emissions.
What’s What with the Rostra?
Sarah Linn discusses the places for public speaking in Ancient Rome.
Baseball: From pitch to hits
Stephen Orne discusses the science behind throwing and hitting a baseball.
Take A Look at Roman Art
Julia Troche discusses sculptures of Augustus, the first emperor of Rome.
How did Greeks and Romans Write?
Angela Murock Hussein
Angela Murock Hussein discusses writing during ancient Greek and Roman times.
Athens vs. Rome
Chaddie Kruger discusses Athens’ and Rome’s shift to democracy.
The Golden Age of Athens
Collomia Charles describes the Golden Age of ancient Athens.
Going, Going, Gone!
Famous street artist Banksy made it so his painting destroyed itself at auction.
Explainer: Global warming and the greenhouse effect
Agnieszka Biskup explains the greenhouse effect and why the Earth is warming.
Down the Drain
Marshall Joseph Becker
Archeologists explore an area that would have been the center of downtown Rome 2,000 years ago.
Raindrops break the speed limit
Stephen Ornes discusses the physics that affect how fast raindrops fall.
Why Paralympic sprinters have trouble with curves
Helen Thompson discusses a study about how physics affects the performance of sprinters with prosthetic legs.
Design Par Excellence
Lena Lambrinou discusses the temples constructed by the ancient Greeks.
Explainer: How scientists know Earth is warming
Sharon Oosthoek explains how scientists can document global warming by measuring the Earth’s temperature.
Your food choices affect Earth's climate
Janet Raloff discusses a study comparing the effects of different diets on global warming.
Dirty Air Can Harm Your Brain and Stress the Body
Lindsey Konkel describes the dangerous effects of air pollution on the body and mind.
California Energy Commission
Electricity is an important source of energy which is created through the interaction of particles.
The author discusses what happens when something short circuits.
Will We Know Alien Life When We See It?
Tina Hesman Saey
Tina Hesman Saey discusses what life on other planets might look like.