People use money to pay for the things they want and need. But what exactly is money? Where does it come from? Are checks and credit cards money? Read this book to find the answers to these questions and learn more about money.
Taxes are collected to support federal, state, and local governments. Who decides how much tax each citizen pays? What does tax money pay for? Read this book to find the answers to these questions and to learn more about taxes and why citizens are required to pay them.
The Hands on Science series provides students with background on key concepts in Science. Each title includes engaging hands on exercises that bring the concepts to life for kids. Real World Science: Earth's Biomes, includes information on tropic rain forests, deciduous forests, grasslands, deserts, taiga, and tundra.
The Hands on Science series provides students with background on key concepts in Science. Each title includes engaging hands on exercises that bring the concepts to life for kids. Real World Science: A Changing Earth, provides information on how landforms change, how mountains form, what causes volcanoes and earthquakes, and the movement of continents.
The Hands on Science series provide students with background on key concepts in Science. Each title includes engaging hands on exercises that help bring the concepts to life for kids. Real World Science: Animals, provides information on the basic needs of animals, and the body parts and behaviors that help animals meet their needs.
Do you have a great idea? Do you think customers would pay to buy your product or service? Read this book to learn more about starting your own business and why good math skills are necessary if you want to make your business a success.
Do you have time, talent, or money that you can use to help others in need? Have you ever wondered which charities you should support or how much you can afford to give? Read this book to find out more about how your math skills can help you give back to your community.
Introduces readers to the cool career of veterinarian by giving a better understanding of this cool job.
Centuries ago, explorers brought hogs to the Americas as a food source. Some of these boars made it into the wild, where their offspring have managed to survive ever since. Wild boars will eat almost anything from garbage, to crops, to other animals. They can also spread disease. Read this book to find out more about how wild boars cause problems around the world and what experts are doing to find solutions.
How the Giant African Snail destroyed field crops and flower gardens and spread diseases to people thousands of miles from their native Africa.
Termites can invade homes and cause a lot of damage. Termites that invade new countries can damage more than just homes. The Formosan subterranean termite was accidentally brought to the United States on infested ships. These invaders have disrupted ecosystems and caused billions of dollars in damage to buildings, crops, and trees. Look inside to learn more about these termite invaders and find out what experts are doing to fight back.
The Walking Catfish have upset the balance of the ecosystems and hurt local economies.
Fire ants are tiny, but they pack a powerful sting. Some kinds of fire ants were accidentally brought to North America from South America in cargo ships. Look inside to learn how these invasive fire ants have spread to many places around the world and why they are a threat to wildlife, human beings, and economies.
Bullfrogs are big eaters, consuming almost anything that fits in their mouths. Meals include birds, turtles, snakes, and even other frogs. At one time, bullfrogs lived only in North America and east of the Rocky Mountains. Today, the large frogs have invaded many parts of the world, causing problems for native wildlife. Look inside to discover how bullfrogs became an invasive species and what is being done to help stop their spread.
the Sea Lamprey have invades the Great Lakes where they have killed off native species and harmed the fishing industry. Find out hoe they arrived, the problems they cause and other places that are on the lookout for these animals.
How the Brown Tree Snake made themselves at home, disrupted the island's ecosystem, and created problems for its people and native animals.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the power of solar energy.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the property of water.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of the states of matter.
Following the scientific process, this titles provides instructions on how to conduct experiments that help students gain a better understanding of sound.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of plants and plant life.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of process of respiration in cells.
Following the scientific process, this title provides instructions on how to conduct experiments that help students gain a better understanding of rocks and minerals.
