Amidst more than 200 billion stars in a galaxy measuring 100,000 light years across, life has been discovered only in one place in the Milky Way: planet Earth. Yet the Milky Way is only one of many galaxies in the vast universe. While extraterrestrial life remains a mystery, explore discoveries about the stars and galaxies we see in the night sky with this engaging science book. Fifth-grade readers will launch into learning about types of galaxies, Earth's place in the universe, properties...

Stars light up the sky on a clear night. They may look the same from Earth, but they come in many sizes and colors. From the balanced forces of nuclear fusion and gravity keeping a star stable to their potentially violent "deaths," explore why these huge balls of burning gas have captivated ancient and modern astronomers alike in this dynamic science book. Fifth-grade readers will launch into learning about the composition and classification of stars, the "life cycle" of these nonliving lu...

While only 12 people have actually had contact with it, many songs and movies have featured this shining object. But it's not a superstar, or even a star at all. It's our moon. From tides and tracking time to gravitational pull on orbits, the moon affects life here on Earth. Take a trip to the moon through the fact-filled pages of this book! Third-grade students will enjoy learning about the physical features and phases of the moon, tides, lunar calendars, and more through this high-intere...

The human body is made of up trillions of cells! Without cells and their remarkable abilities, there would be no life. Layer by layer, you'll journey into animal and plant cells to discover what these building blocks of life look like and how they function in this fact-filled life science book. From prokaryotes to eukaryotes, fifth-grade readers will learn all about cell theory, cell function, mitosis and meiosis, organelles in plant and animal cells, and more through this high-interest in...

Learn all about planet Earth in this engaging, colorful title! Earth is our home. It is a big, beautiful place that orbits the sun. What else is there to know about Earth? Read this Spanish-translated book to find out!

What goes up must come down! How often have you heard this saying? This typically refers to the effects that gravity has on objects. Without gravity our lives and surroundings would be very strange! Let this physical science book pull you into learning about the power of gravity both on Earth and out of this world. Teach third-grade students about mass, weight, inertia, gravity, and more with the colorful images and fun facts in this high-interest informational text. Featuring a hands-on "...

Many cycles occur on Earth that keep Earth's different systems connected. Introduce students to the various elements that help create Earth's many cycles. Create an interest in this topic and keep students engaged throughout their reading with high-interest text, vibrant images and diagrams, engaging facts, an easy-to-navigate table of contents, and a helpful glossary and index. To bring concepts to life, a "Think Like a Scientist" activity that supports STEM instruction is included at the...

La Tierra es un planeta que se mueve alrededor del sol. Sin embargo, la Tierra no es el único planeta en nuestro sistema solar. Es uno de los ocho planetas, varias lunas y otros objetos que orbitan nuestro sol. Los planetas tienen mucho en común, pero también tienen muchas diferencias. En este libro traducido al español, conoce todo sobre estos emocionantes planetas.