In the News

Less Travel Helps Clean the Air

What Is Nitrogen Dioxide?  You can’t see nitrogen dioxide. It’s a gas made by cars, trucks, buses, power plants, and factories. Too much nitrogen dioxide causes smog and acid rain. It can make people sick, too. Nitrogen dioxide is partly to blame for … Read more

In the Know

How Do People Use Lasers?

A laser is a thin, powerful beam of light. Lasers use mirrors to focus light energy. People use lasers every day. You may even have a laser at home. A DVD player uses a laser to read the information on … Read more

Supreme Court
In the News

Supreme Court Hears Cases Remotely

stop the spread of COVID-19. It’s not just schools that are meeting remotely. Even the justices of the Supreme Court of the United States are hearing their cases remotely—over the phone. This is the first … Read more

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In the News

The Importance of Social Distancing

Have you heard about “social distancing”? Social distancing is a way to stop the spread of COVID-19, the new coronavirus. Scientists believe that the virus spreads through the air when an infected person coughs, sneezes, … Read more

In the Know

Why Is the Census Important?

The Constitution of the United States says that a census should take place every ten years. This year is one of those years. What happens in the Census? A census counts the people living in … Read more

bicycle turn signal
In the Know

Bicycle Safety Tips

Riding a bicycle is lots of fun. Riding is great exercise and a fun way to get to places you want to go. But every year, about 300,000 kids go to the hospital for bike … Read more