"To have good friends, you need to be a good friend. Listen. Be kind. Be reliable. Put others first. Being a good friend takes work, but the end result is worth it!"--

How much do you know about Chief Joseph? Find out the facts you need to know about this leader of the Nez Perce people. You'll learn about the early life, challenges, and major accomplishments of this important American.

"Cinco de Mayo is about celebrating! It honors a Mexican Army victory during the Battle of Puebla in 1862. Some people mark the holiday with folk dancing or traditional foods such as chalupas and mole poblano. Others watch parades or attend cultural festivals. Readers will discover how a shared holiday can have multiple traditions and be celebrated in all sorts of ways"--

Earth Day celebrates our beautiful planet and calls us to act on its behalf. Some people spend the day planting flowers or trees. Others organize neighborhood clean-ups, go on nature walks, or make recycled crafts. Readers will discover how a shared holiday can have multiple traditions and be celebrated in all sorts of ways.

Mambas can be either green or black. These dangerous snakes kill prey with their venomous bite. Then they swallow their prey whole! Learn more about these awesome snakes.

Martin Luther King Jr. Day celebrates the life of the civil rights movement leader. Some people observe the day by singing, reading, or watching movies about him. Others volunteer in their community or make peace-inspired crafts. Readers will discover how a shared holiday can have multiple traditions and be celebrated in all sorts of ways.

Presidents' Day celebrates the birthdays of George Washington, Abraham Lincoln, and all U.S. presidents. Some people go to parades, visit historical sites, or read books about presidents. Others dress up in costumes. Readers will discover how a shared holiday can have multiple traditions and be celebrated in all sorts of ways.

Some climates are dry and some are wet. Some are cold and some are warm. But those words can describe weather too. Learn the difference between weather and climate. Find out how landforms and location can influence weather patterns.

The Army is the biggest and oldest branch of the U.S. military. It relies on highly trained soldiers to complete missions around the world. Learn about the roles of soldiers and their training, and get an inside look at the advanced equipment, vehicles, and weapons the Army uses. When duty calls, the Army is always ready to defend.

The U.S. Navy traces its roots back to the American Revolutionary War. Then, its small fleet was outnumbered. Today, it is the largest navy in the world. Learn about the roles of sailors and their training, and get an inside look at the different types of ships, aircraft, equipment, and weapons the U.S. Navy uses to complete missions around the world.

Stress can make you feel bad. It can be caused by lots of different things. A big test. A fight with a friend. A new experience. But no matter what causes the stress, what's important is how you deal with it.