Deeply religious, the ancient Greeks honored many gods and goddesses. The ancient Greeks believed these gods and goddesses had great power over the weather and the Earth. But they weren’t all-powerful, and they had flaws. From Zeus to Athena, read about the family of gods and goddesses that the ancient Greeks believed watched over them.

A massive tsunami caused by the strongest earthquake to ever hit Japan triggered the world's worst nuclear crisis since the Chernobyl accident 25 years earlier. The monster waves that crashed into the Fukushima Daiichi nuclear plant in March 2011 killed 15,000 people and caused nuclear reactor meltdowns that threatened the lives of thousands more. The waves receded long ago, but the devastating effects of the nuclear accident still linger.

The Maya civilization thrived in southeastern Mexico and northern Central America for thousands of years. Its culture was known for its impressive stone buildings and pyramid temples, as well as developments in astronomy and mathematics. But what was it like to live there during the height of this civilization? Explore life in a farming village that faces a devastating volcanic eruption. Assume power in a city-state at risk of plunging into war with a rival community. Work as a scribe duri...

Scientists have recently started studying plastic pollution and our food supply. And, make no mistake, you are eating microscopic pieces of plastic everyday. What does it mean for our health? And what can you do about it? Students will get practical tips on how they can get involved and become part of the solution.

On-point historical photographs combined with strong narration bring the story of the first photograph of a black hole to life. Kids will learn why it was so hard to take a photo of something so dark it does not reflect light, and so far away it could barely be reached. Primary source quotations bring the amazing accomplishment to life.

The final match of the 2001 U.S. Open featuring tennis stars Venus and Serena Williams was groundbreaking. It was first time siblings had squared off in the final match for more than 100 years. And it was the first time both players were black. The photo of the smiling Williams sisters holding their trophies after the tennis match appeared in newspapers around the globe. It captured two athletes who fought, and would continue to fight, for a place for women and African-Americans in tennis ...

Weighing as much as a small car, a rover named Curiosity rolls quietly around Mars. Scientific instruments pack its body and cluster at the end of a mechanical arm. An arrangement of lenses and instruments tops its mast, like a face. To the many NASA workers involved in Curiosity's mission on Mars, the rover is not simply a robot, but an astronaut bravely exploring an alien place. Curiosity's instruments collect data and its cameras take images of the Mars landscape, including self-portrai...

Betsy Ross made many flags during the American Revolution, but did she sew the first flag? Infographics, leveled text, and primary sources help readers follow the fact and fiction found in this tale of stars and stripes.

Hate crime in the United States is on the rise. The FBI has reported that hate crimes rose by 17 percent in 2017, increasing for the third straight year, and the trend continued into 2018 and 2019. The crimes are most commonly motivated by hatred related to race, ethnicity, or country of origin. Many crimes are also motivated by bias against sexual orientation or gender identity. Students will learn why hate crime is on the rise and how they can help combat it.

Present-day Virginia was home to the early Powhatan tribes. But settlers were eager to explore the rich land and the rivers in the area. The Powhatan were forced to adapt to new ways of life. But they continue to thrive in modern America, remembering and honoring their past traditions.

George Washington knew he was setting an example in everything he did. The first American president had been a heroic military commander during the Revolutionary War, leading his forces to victory. As president he would guide the citizens of a new republic with a strong central government. No more would each state make its own decisions. Instead, they would band together, with the beloved Washington leading the way. It was up to him not to abuse the power of his mighty position.

The Trail of Tears marked the low point in Cherokee history. The survivors of that deadly event set a new course, rebuilding their lives in an unfamiliar land. Their descendants have prospered in modern America but always remember their culture and past.