Resultados para "David" en Naturaleza

In this engaging young readers edition of The Monster’s Bones, David K. Randall journeys from prehistory to present day on a gripping, gritty expedition through the history of one of the world’s greatest scientific discoveries. At its heart are two men from vastly different backgrounds: socialite Henry Fairfield Osborn, the president of the fledgling—and struggling—American Museum of Natural History, and intrepid fossil hunter Barnum Brown, who blazed a path out of his small-town life in Kansas with an uncanny gift for uncovering dinosaur bones.

Newly reintroduced along with his pack to Yellowstone National Park, Wolf 8 struggles at first. Small and bullied by his siblings, he must learn to fend for himself in his new home, learning to hunt, compete for food, and even stand up to a grizzly bear 10 times his size. One day, little 8 meets an alpha female raising a litter of pups on her own. Her mate was killed by humans. Can little 8 rise to the occasion and help the young family survive? Is he ready to be an alpha wolf?

The insect world is a fascinating place. You may not think so. You may think insects are gross. Or scary. Or dangerous. But there’s so much more to insects than what meets the eye. Told through hilarious prose and packed full of jaw-dropping facts, Brenna Maloney’s first-person narrative presents the big picture on bugs. Insects play a critical role on our planet—as pollinators, garbage collectors, artistic muses, research partners, and even as “dinner.”

Examines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Can you guess when trees stop growing–they don’t stop! Their massive roots keep them in the ground and require plenty of water, sunshine and nutrients from the soil to help them grow. Trees are the oldest, largest and tallest living things on Earth, with the oldest part of the tree being its strong, woody middle. Find out how a maple tree gets its start! How does a tree grow?

What happens when the trash you throw out is picked up by the garbage truck? Where does it go? Once the garbage truck picks up the trash in your neighborhood, it goes on a journey to be broken down. A recycling truck might pick it up and make new things or it may be used for a compost heap, or maybe it goes to a landfill where it’s covered with dirt. Find out what happens when a landfill is full!

Yo helps his father recycle garbage and learns what types of trash go into the recycling bin. Yo learns his fleece vest is made of plastic and that special factories recycle the plastic and melt it down into new things like toys and his favorite fleece vest! Can you guess which trash goes into the blue bins? Yo wants to surprise his mother with a special present–knowing how to recycle!

The wind is moving air! When warm air rises through the atmosphere, cool air flows in to take its place, creating wind! Did you know that wind power can produce electricity? Tall machines called wind turbines are solar-powered and becoming the fastest-growing renewable source of energy–they burn no fuel and cause no pollution. Turbines can be found on many wind farms, especially in Europe!

Yo learns an important rule about using a campfire when she goes camping with her mother and father. Yo notices land destroyed by a forest fire. Campfires can start just from a small spark hidden in the coals of a campfire and a little wind! Yo discovers how forest fires can start and how to prevent them. What does Yo learn about being safe with campfires? How would you put out a fire?

Climate change affects many regions with hotter and drier weather, and forest fires are a growing problem. Learn how hungry animals might help reduce wildfires. Fires need fuel, oxygen and heat to start a flame. The forest floors are covered with dry grass, dead wood, and bark called duff–fire fuel! Learn how conservationists are using sheep, goats, beavers and other animals to reduce fires!

Making a compost pile is a simple way to dispose of waste—like leaves, grass clippings, fruit, and vegetable peels—and turns them into healthy food for plants! Cece notices how nice Jane’s flowers are and wants to make a compost pile, too! Jane and Click show their friends how to make compost and you can learn too! What else is needed to help the compost decompose?

What kind of insect protects itself with bright colors, warning insect eaters to stay way–a ladybug! Learn about insects and animals that live together in a garden. Interacting together, these living organisms have a lot in common! Some can help a garden grow strong and others can cause a lot of trouble. Raccoons like to eat the seeds and berries while spiders help by eating the pesky insects.

Got a pair of old tights, an empty can or a plastic bottle that you plan to throw away? You can upcycle those old things and turn them into new items you can use! Upcycling is recycling in a better way! Learn how to make a decorative pencil holder, a draft dodger to keep the cold out, or turn plastic bottles into bowling pins. What things can you create to reduce the use of plastic and metal?

What is juicy, red and green with white stripes and pops up from the ground ready to eat—watermelon! Their seeds need plenty of water, lots of sun and nutrient rich soil. Follow along as a tiny, black seed bursts into a delicious fruit. Watermelons are ready to be picked when their yellow petals have all fallen. Find out what Bee-u-ti-ful insect helps the watermelon grow?

Native American tribes from the Northwest Coast learned to use the wood of cedar trees for many of their daily needs. Tribes used recycling to conserve resources hundreds of years ago. Pounding bark until it was fluffy to make diapers and with special thin branches called withes, cedar trees were soaked and used to make rope. What special technique did tribes use to take down big cedar trees?

Plants and animals are in trouble! All over the world, they are affected by how we treat their environment. Learning some ways to change how you interact them and their environment, such as limiting your trash and using recycled products, can help them! See why conservation is important.

Imagine if the sunlight could not reach where you lived–the weather would be cold and slippery! The sun does not shine directly on the Arctic and Antarctica, causing the surrounding waters to freeze solid. The earth is tilted as it rotates around the sun, preventing the polar regions from getting enough sunlight. Can you guess how long it takes the earth to orbit the sun?

Do you know how many animals live in the Amazonian rainforest? Learn about the different predators and prey that coexist and depend on one another to survive. See how all life within a rainforest serves different roles and leads to a successful ecosystem.

Have you ever wondered how plants grow? How does the plant stem know to grow up while the roots grow down? This book will teach children how gravity affects plants with a fun experiment to grow their own beans!

Martin, Liz, and their friend take a hike through the forest and learn about animals and plant life. This forest ecosystem is a healthy environment for animals and plant life to grow. A woodpecker checks for bugs to eat in a nearby tree, with bark that is ancient. Martin notices moss on the old tree bark and poisonous mushrooms! What else will they find on their forest hike?