What produces magnetism in the human body?

Did you know that electricity needs certain objects in order to be able to travel? Come and learn about what insulators and conductors are, and see some examples of each.

Have you ever switched on your bedroom light and wondered what makes the bulb glow? The answer is electricity, and it's all around us - even moving through us! In this lesson, learn the basics of electricity.

Gravity is what helps keep our feet grounded to the Earth and also causes us to fall! In this lesson, we'll learn what gravity is, how Earth's gravity works, and how gravity in the universe affects us and other objects in space.

There are many uses of electricity. Not only does it allow you to watch your favorite TV show or bake a pizza in the oven, but it also allows you to do your homework on a computer or play your favorite video game. This lesson explains the basics of electricity, including voltage and the different types of currents.

Electricity is used in all aspects of your daily life, from powering your computers to your refrigerator. Have you ever actually wondered how electricity works? In order for electricity to happen, we must have electrical currents. Let's learn how electric currents travel through circuits and give us electricity.

Heat - you experience it everyday, and it is essential for life, but have you ever thought about where it comes from? In this lesson, find out what heat energy is and three ways it can be transferred.

All over the world, different living and non-living things have special jobs they do to create a healthy, functioning role in their ecosystem. Come and learn about the different types of ecosystems and what it would be like to live in them.

Love your electronics? Well, take a closer look at that word and you will see 'electron.' Electrons are important for so many amazing things that happen around us, including electricity. This lesson focuses on the nature of electrons, where they are found, and how they work.

Magnets are fun, useful and amazing tools that are used in a variety of ways. Have you ever wondered how magnets are made? Continue reading to discover fascinating facts about how magnets are made.

Matter exists in different phases, but it can also change from one phase to another. It's not magic, it's energy! In this lesson, you'll explore how energy can change matter from one state to another and what the names of these phase changes are.

Have you ever wondered why flipping a light switch turns on the light? In this lesson, you'll learn about electrical circuits and what makes them work.

In this lesson, you'll learn several interesting facts about light. You'll discover the characteristics of light and key definitions associated with light.

In this lesson, you will learn how to measure and compare liquid volume. You will also learn what units in the U.S. (Standard) and Metric systems are used to measure volume.

In this lesson, you'll learn about a special kind of electrical circuit called a series circuit. Continue on to find out what makes up a series circuit, how it works, and some problems with these circuits.

Have you ever tried moving something heavy? Was it easier to pull it across the floor in a wagon, or push it with just your hands? In this lesson, we will learn about how force and motion can change the position of objects.

What happens when you push your friend on the playground? How about if your team pulls the hardest in tug of war? The reason your friend falls or your team wins is because you applied force. This lesson teaches you all about the different types of force.