4th Grade

If you've worn headphones, watched TV, worked on a computer, or ridden in a car, then you have experienced the power of electromagnetism. Learn all about electricity, magnetism, the link between these forces:...

There are many types of energy. From potential energy to kinetic energy, electrical energy to mechanical energy, energy is constantly changing from one form to another. Learn how energy powers our world in this exciting...

People experience extreme weather all over the world every day. From blizzards that pack cities with snow to thunderstorms that create terrifying tornadoes, this wild weather can be very dangerous and people must learn...

What are food webs and how do they affect our environment? Discover the ways in which energy is transferred through interdependent living things in this engaging e-book!Students will enjoy learning about producers,...

While Earth is constantly changing, evidence shows that humans are speeding up the process of the greenhouse effect. Extreme weather, plant and animal extinction, and reshaping of our coastlines are harmful effects of...

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...

Earth is a unique place to live. Being just the right size and distance from the sun to maintain life is remarkable! Life depends on non-life in order to live. Explore the interdependence of living and nonliving...

Every time you eat a sandwich, an apple, or a piece of cake, it's like you are eating a little piece of sunshine! The sun is the source of all energy on Earth and flows through all life - even through the waste of an...

Plants, insects, snakes, salmon, eagles, elephants, humans; these living things all pass through a life cycle from birth to adulthood. Examine moth cocoons, the feather gills of a salamander larva, beaver yearlings, and...

Light heats our skin, helps us see in the dark, and even helps cure cancer. Light is also used for many things that we may not know about. Learn how light is formed, how it helps us every day, and much more by diving...

Why are chemists so great at solving problems? Because they have all the solutions! Get it? Knowing how mixtures and solutions work makes our lives easier and more enjoyable. Examine the molecules behind mixtures and...

Natural resources, renewable resources, and nonrenewable resources are types of resources that we rely on every day. However, some of these resources are being overused and may run out if we aren't careful. Discover...