Here you will find the latest topical and news stories in the world of Science.
Humans have been putting objects like spaceships and satellites into space since 1957. Each time an object is put into space, small pieces fall off. Sometimes these pieces are released into space on purpose. Other … Read more
Lasers use mirrors to concentrate light energy into a thin, powerful beam. You might be surprised by how often people use lasers. In fact, you may have a laser at home. A DVD player uses a laser to … Read more
A Dangerous Gas Nitrogen dioxide (NO2) is a gas that is released into the air when fuel is burned. Emissions from cars, trucks, buses, power plants, and other industrial facilities release nitrogen dioxide. The environmental impact of nitrogen dioxide includes smog and acid rain. … Read more
How are you celebrating Earth Day this month? You might be doing things to help fight climate change, like recycling or planting a tree. But what exactly is climate change, and why is it happening? … Read more
The countdown to Earth Day 2020 has begun! This year’s main theme will focus on climate action. Climate change represents a major issue that impacts life on Earth. It involves changes in weather patterns, and … Read more
Take a look around you. Everything you are sitting on, holding, and looking at was invented by someone! Do you ever wonder how people get ideas to invent new things? Inventors and engineers follow a … Read more
Have you ever wondered why clocks “spring forward” and “fall back”? Two days each year, many people change their clocks to follow daylight saving time. The clocks are set one hour ahead in March to … Read more
Did you know that Black History Month started in 1926 as a one-week event to bring attention to the contributions of African Americans? The event became so popular that by 1976, President Gerald Ford made … Read more
The Heart’s Job You probably know you need oxygen to live. In fact, all the cells in your body need oxygen—and your heart makes sure they get it. A heart is an organ inside you … Read more
From students hoping for a snow day to long-distance travelers, everyone wants to know about the weather. Forecasting weather is among the greatest scientific achievements of the last century. Meteorologists can predict weather about a … Read more
© 2024 McGraw-Hill Education. All Rights Reserved.
