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The outside layer of our planet is an active place. Earth's crust is always growing and changing. But do you know how Earth's crust forms? And what happens when its plates shift suddenly? Find out more about the moves that make mountains and ocean ridges in this interesting audiobook!

There are a lot of interesting words chemists study in the science of chemistry. Kids will learn about compounds and mixtures in this fact-filled audiobook. Fun music and engaging lyrics will have young researchers understand the difference between a compound and a mixture.

Kids will learn all the colors that make up white light are called the “spectrum.” These are the colors of a rainbow. Fun music will help explain that a prism is a special shaped piece of glass that breaks white light into seven colors. As the light passes through the prism it bends each color so we see all the colors separated from one another when the light comes out of the prism.

The life cycle of a frog is very interesting. First, a frog will lay its eggs in water. The eggs are inside a jelly-like covering. Soon tadpoles begin to grow inside the eggs. They have a head, body, and tail. Tadpoles swim in the water feeding on tiny plants called algae. As a tadpole grows, it will develop hind legs and then front legs. Then a tadpole will develop lungs and go to the surface of the water to breathe. Now the tadpole looks more like a frog. It will climb out of the water to eat insects and worms. Listen to this fun, factual audiobook about the life cycle of a frog!

If you are fascinated with thunderstorms, cloud formations, tornados, and windy weather, you might be interested in becoming a meteorologist.

Kids will explore why the weather is constantly changing in this fun, rhyming audiobook about the weather.

What do you know about sharks? Beginning listeners will get their feet wet with these literacy-building introductions to ocean animals.

Can a person catch on fire without any reasonable explanation? Find out all we know about spontaneous human combustion in this exciting new book!

Animals survive in the wild against predators. Many animals, like the salamander, can regenerate limbs–arms, tails, toes, and hearts! Can you guess how long it takes the salamander to grow a new limb? Learn about other animals like the octopus with this same protection. Not all animals have cells that can regenerate limbs for their survival. What do you do if you find an injured animal?

A tree’s rings can tell us many things about its long life–whether it was healthy, or unhealthy, if it needed rain or if its wide rings show it grew healthy and strong. Through poetry, this story shares the life of a tree and how special these giant plants really are! Find a stump and count the rings to listen to a tree’s story. Will the tree you pick be healthy? How will you know?

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!

Travel through Rumpke’s recycling center to find a plastic jug? Trash that can be recycled takes a ride on the conveyor belt to become something new! Try to find the milk jug on the conveyor belt! Trash at the factory goes through many machines to make sure it can be recycled. Can you guess what the milk jug will help make once it leaves the factory? What other types of trash go on the conveyor belt?

What happens to trash after the garbage truck picks it up? Where does it go? The problem of too much trash is hurting the planet. Recycling, reusing, composting and creating new ways to make less trash is a start! Learn to recycle old furniture, and how safer materials are being developed that can easily decompose. People are working hard every day on new ways to have a trash-free future! Are you?

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?

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!

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?

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?

Gardens make great habitats for many types of animals. Water, protection and food are the benefits for animals living in a garden, and in return they keep the soil healthy, eat pesky insects, and help pollinate the flowers.