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People, plants, and animals all need rain. But the ground can take in only so much. Too much, and the land will flood. Farms and cities can be damaged. People must move to dry ground until, slowly, the water soaks into the earth. Learn about floods, what...

The ground shakes. A road splits apart. Buildings collapse. It's an earthquake! Discover how movement deep below Earth's surface can cause such damage. Learn about earthquakes, what causes them, and how to stay safe if one happens.

Dry land. Thirsty plants. When rains don't come, droughts happen. Desert, forest, or prairies, droughts can happen anywhere. Discover how small shifts in rain amounts can cause big changes to the land. Learn about droughts, what causes them, and how...

Biomes are home to unique animals and plants. Give beginning readers an introductory look at the Amazon rain forest! Readers will get an up-close look at the characteristics of the land and weather and how monkeys, parrots, anacondas, sloths, and other...

Biomes are home to unique animals and plants. Introduce beginning readers to the African Savanna biome! Readers will get an up-close look at the characteristics of the land and weather and how zebras, lions, giraffes, and other animals have adapted to...

A person needs to get a hospital quick! What vehicle can get them there fast? An ambulance! Ambulances carry the equipment needed to help people in an emergency. Young readers will find out about ambulances, their main parts, and how these important...

Every four years, the world celebrates one of the most exciting contributions of the Ancient Greeks: the Olympic Games. That, of course, is not all this great civilization left behind. From theater to democracy, discover how the Greeks' ancient...

The Ancient Egyptians are famous for their pyramids and mummies, but how do these ancient items impact your life today? From hieroglyphs evolving into emojis and kohl around the eyes evolving into eye liner and mascara, the inventions and discoveries of...

From pasta to paper, the inventions of the Ancient Chinese remain part of everyday life in our modern world. Learn how items like wheelbarrows, the first toothbrushes, and early earthquake detectors have evolved into devices we know today and discover...

Why should you care about climate change? Weather affects your everyday life and climate change can have major impacts. Discover how scientists study climate change, what current research shows, and what you can do to reverse its effects.

Birds chirp. A dog barks. Thunder claps. We hear sounds all around us. But how? Sound waves travel through the air, but we don't see them. With engaging, at-level text and colorful images, readers will learn about sound waves and how we use them every...

You see your shadow outside on a sunny day. A rainbow appears in the sky after a storm. Light waves are all around us, even when it's dark. With engaging, at-level text and colorful images, readers will learn about light waves and how we use them every...

The sun is out. The temperature is hot. And Sasha has everything packed and ready for a full day of swimming! But Mr. Sloth is taking for-eh-ver! Sasha does NOT like to wait. However, her best friend is never in a hurry. Will Sasha learn to be patient,...

Lava shoots into the air, then bubbles down mountains, flattening, burning, and boiling everything in its path. The destructive forces of volcanoes are terrifying and well-known. But what about their other forces? Volcanoes can spur new growth of plants...

Have you ever heard of a mammal that lays eggs? What about a mammal that can give birth to 50 babies at once? Young readers learn all about echidnas, Tasmanian devils, and other mammals with unusual life cycles.

Have you ever heard of a frog that freezes solid in winter? What about a toad that carries its eggs on its back? Young readers will learn all about wood frogs, suriname toads, and other amphibians with unusual life cycles.

Why do we yawn? Are left-handed people more creative? Why do we have fingerprints? When it comes to our bodies, there are a whole lot of questions we’re still trying to answer. Get ready to explore the unknown and discover how scientists are working to...

How did Earth form? Where did all the water come from? How did Earth's plates begin to shift? When it comes to our planet, there are a whole lot of questions we're still trying to answer. Get ready to explore the unknown and discover how scientists are...

In July 1969, astronauts on the Apollo 11 spacecraft became the first people to land on the moon. Since then, people have told stories about the historic event. Did an unmanned Soviet spacecraft crash into the moon while the Apollo astronauts were on it?...

The 1922 discovery of King Tut's tomb is one of the most important ancient Egyptian finds in history. People have told stories about it ever since. Are there rooms in King Tut's tomb yet to be discovered? Did clues point to King Tut being murdered? Read...

Wesak is about celebrating Buddha. It is a Buddhist holiday. People clean and decorate temples for the celebration. Then, they honor Buddha at temples by making offerings and reciting holy texts. People also do good deeds during Wesak. Readers will...

Rosh Hashanah, the Jewish New Year, is the first of the Jewish Holy High Days and one of Judaism's holiest days. Often called the birthday of the world, it is celebrated on the first day of Tishrei, the seventh month of the Hebrew calendar. People...

Ramadan and Eid al-Fitr are special times of year for Muslims. The holy month of Ramadan is filled with fasting, prayer, and good deeds. Eid al-Fitr is a celebration at the end of Ramadan! Families and friends come together to pray and feast during this...

Passover is about celebrating the story of the Israelites escaping from Egypt and returning home. It is a Jewish holiday. People take extra care in preparing their homes. They also gather with family and friends for a big meal and activities that...

Holi is about celebrating the triumph over good and evil. It is also a celebration of love. It is a Hindu holiday. People have a bonfire to represent the story of Prahlad and Holika. They also gather in the streets to throw colored paint on one another...

Hanukkah is about celebrating! Often called the Festival of Lights, the eight-day celebration honors a miracle that happened long ago. During Hanukkah, people light the menorah. They sing songs. They gather with family and friends to eat special food and...

Halloween is a holiday that features all things creepy and scary! Also known as All Hallows' Eve, people enjoy decorating their homes with jack-o-lanterns, spider webs, skeletons, and other creepy items. Many kids love to dress up in costumes and go...

Eid al-Adha is about celebrating! It is a Muslim festival remembering the sacrifice Ibrahim was willing to make. People mark the festival with prayer, visiting family, and gifts. Some people sacrifice an animal and share the meat with their community...

Easter is about celebrating Jesus Christ dying and coming back to life. It is a Christian holiday. People attend church. They also gather for a big meal and activities like egg hunts. Readers will discover how a shared holiday can have multiple...

Diwali is about celebrating! It honors the Hindu story of Rama. Sikhs, Buddhists, and Jains also celebrate Diwali. To celebrate this Festival of Lights, people light lamps, watch fireworks, and dance. Others might exchange cards and presents. Readers...

Christmas is about celebrating! It is a Christian holiday celebrating the birth of Jesus. Some people mark the holiday with Christmas trees and other decorations. People gather with family and friends to eat meals and give gifts. Readers will discover...

Chinese New Year is a time for new beginnings. Some people clean their homes from top to bottom or share meals with friends. Others pray, light fireworks, or give each other gifts. Readers will discover how a shared holiday can have multiple traditions...

The human body is amazing. Your blood makes up about 8% of your body weight. On average, your heart will beat more than 3 billion times in your lifetime! Doctors and scientists make choices every day about how to keep our bodies going. But what would you...

Lance Cottonwood is the best and brightest of the leaves, but even the top students on the tree have worries. Can Lance conquer his fear of falling and just let go when the time comes for his final exam, or will he let his worries take over? In this...

When Tania was six years old, she and her parents fled Ukraine during World War II. For years they were refugees in Europe, displaced and without permanent residence. Finally, they found safe housing in a refugee camp, but what about home? Day by day,...

Vikings were fierce warriors who sailed the seas looking for new lands. They were expert sailors and shipbuilders. Find out the science behind their explorations, shipbuilding, and daily life. Discover how modern technology is being used to discover more...

Summer birthdays can be lonely, but not when you have great friends like Beavers! This year Tortoise, Bird, Rabbit, and Squirrel insist on baking Beaver's birthday cake, but Beaver isn't so sure. He is the ultimate perfectionist and would rather do it...

When Mya wakes up to a gloomy day, her grandpa asks her how she could make the day brighter. His simple question puts Mya into motion, and together with her little brother, Oliver, and neighbor Addie, she opens the Kindness Booth. Their plan is to spread...

While the other Vikings love to holler and howl and battle and brawl, Leif prefers spending time by himself atop the beautiful fjord. But when it's time for the Viking Games, everyone must participate. Will Leif let down his clan . . . or surprise them?...

How to make it through life and accomplish everything you want? A bucket list, of course! Learn how to speak up and be heard, balance money, spread your wings, and more in this easy-to-follow guide guaranteed to help you tackle all the items on your life...