On September 11, 2001, the United States suffered the worst terrorist attack in history. Members of an terrorist group called al-Qaeda hijacked three airplanes. They crashed the planes into the Pentagon outside of Washington, D.C., … Read more
How do scientists prepare for life on other planets? They hike deep into a mountain’s lava tubes. Lava tubes might hold the key to future life on the Moon and Mars! Lave tubes are long empty spaces created by lava … Read more
Have you ever seen streaks of light in the night sky? Do you call them shooting stars or falling stars? Did you know that shooting stars, also called falling stars by some, aren’t stars? They … Read more
Imagine that you are doing some work or playing a game on your computer, and it stops working. Then you get a message from someone who says that they will make your computer work again, … Read more
If you went to the Olympics, you might notice places where teams and fans get together in “Houses.” At the Team USA House, for example, Team USA, friends and family, and team sponsors come for … Read more
The first Tuesday of every August, communities across the nation participate in a special event called National Night Out. The event started in 1984. Matt Peskin, a young man in Philadelphia, launched a new crime … Read more
Earth is home to a huge variety of plants and animals. Although it may not always be easy to see, these living things rely on each other. A balance between plants and animals allows them … Read more
Most of us have been stuck at home since March 2020! Now that things are starting to get back to normal, people are emerging from their homes. But people aren’t the only living things emerging … Read more
During the COVID-19 pandemic, some people went without seeing distant family members for a year—or more. They cancelled travel plans because they wanted to stay safe. Now, with many Americans vaccinated against the virus, the … Read more
Back in 2014, a nine year-old girl wrote a letter to President Barack Obama. She wondered why there were no women featured on any United States currency. She mentioned many women in her letter, including … Read more
© 2025 McGraw-Hill Education. All Rights Reserved.
