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Weather includes all the conditions in the air around us. Snow, rain, sleet, and hail are all forms of weather. So is the temperature of the air and the amount of moisture in it. Learn all about weather, including how and why it changes from place to place and time to time.

Weather is always changing. It can be unpredictable. But even with all the changes, some patterns can be found. Learn how meteorologists use tools and systems to measure and predict these patterns. Find out how these patterns influence weather around the world.

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.

Will tomorrow be cold or warm? Cloudy or sunny? Wet or dry? Meteorologists make predictions about how weather conditions will change. Find out how they do it, and what challenges they face in trying to help people prepare for coming weather conditions.

Some dogs are black. Other dogs are brown. Some plants have purple flowers and others have white flowers. Living things have different traits that they pass onto their offspring. Let’s investigate traits to learn more!

Animals are living things. Rocks are nonliving. Why? Let’s investigate the differences between living and nonliving things!

Some animals live in water. Some animals live on land. The land that animals live on can be very different. What makes a place the right home for an animal? Let’s investigate habitats!

Plants make pollen so more plants can grow. The pollen needs to get from plant to plant. How does this happen? Let’s investigate pollination!

Plants are living things. They need certain things to grow and live. What are they? Let’s investigate what plants need to survive!

Animals are living things. They need certain things to grow and live. What are they? Let’s investigate what animals need to survive!

¿Alguna vez has visto un agujero en la tierra y te has preguntado que hay dentro? ¡Podri´a ser un perrito de las praderas! Estos pequeños y tiernos mami´feros construyen comunidades de tu´neles subterra´neos. Descubre fascinantes datos sobre los perritos de las praderas y ente´rate de lo que realmente ocurre bajo tierra.

Con sus espeluznantes aullidos y su feroz habilidad para la caza, los lobos son criaturas fascinantes. Viven en manadas y son parientes cercanos del mejor amigo del hombre, el perro. Aprende más sobre estos magníficos cazadores.

Las tarántulas usan sus fuertes mandíbulas para atrapar a su presa. Pero estas grandes arañas no son tan peligrosas como se cree. ¡Algunas hasta pueden ser mascotas!

¡Los gorilas son los primates más grandes del mundo! Estos amables mamíferos deambulan por la selva, viven en grupos grandes y buscan frutas y brotes de bambú para alimentarse. Sube a los árboles y conoce a estos poderosos y amigables primates.

¡Las ballenas azules son los animales más grandes que jamás hayan vivido en la Tierra! Pero no es fácil verlas porque están escondidas en las profundidades del mar.

¡Los tiburones blancos son los tiburones depredadores más grandes del mar! Viven en distintas partes del mundo, tienen muchos dientes afilados y pueden detectar la sangre a millas de distancia. Sumérgete en lo profundo del mar y descubre datos asombrosos sobre estos tiburones.

Bald eagles, bees, and bats all fly. But a bee is an insect. A bat is a mammal. And a bald eagle is a bird! Why are these animals sorted into different groups? Let’s investigate animal classification!

¡Las anacondas son las serpientes más grandes del mundo! Estas enormes criaturas estrujan a sus presas hasta asfixiarlas. Algunas son tan largas como un autobús y son capaces de estar bajo el agua por mucho tiempo mientras cazan. Aprende sobre estas poderosas serpientes.

The natural world can be a beautiful and awesome place. But sometimes things happen naturally that are quite peculiar. Have you heard of Blood Falls in Antarctica? Ice cold water flows bright red out of a glacier. Did you know that Death Valley National Park in California has boulders that mysteriously slide across the desert? Learn the details of these mysteries and other peculiar natural phenomena.

Over the waves, sea lions bark and seagulls wheel and call. The bay is smooth and bright in the sun. But under the waves, there’s a whole hidden forest full of whales and wolf eels, sardines and sea bass, and leopard sharks and luminous jellies, as well as the waving kelp that shelters them all.