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What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?

This strategy helps students reflect upon and assess a video.

Teen brain development prepares teens for adulthood, but also affects their emotions.

This strategy helps students to become familiar with vocabulary before reading or viewing unfamiliar material.

What are microplastics? How are plastics polluting aquatic ecosystems?

Electricity demand changes constantly. Suppliers need to generate more electrical energy when demand is high, and less when demand is low.

Today, you know it's the same time everywhere in your time zone thanks to Universal Coordinated Time. But when humans used the Sun to tell time, they couldn’t tell time precisely.

Using the heat of the Earth’s interior, you can heat your home with a ground source heat pump. This kind of heating is cheaper and better for the environment!

Products of the rock cycle are visible all across Canada.

NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.

When astronomers search for extraterrestrial life, they often have to listen for radio waves coming from deep space. If you’re interested, you can help!

Spending time outside has important physical and psychological benefits. It can even help you learn better!

Viruses can make you feel awful! This article explains how feeling bad might be your immune system’s way of helping you heal.

Learn about the organic compounds that make up lipstick as well as about some of the chemistry that goes into this popular cosmetic.

When you hurt your ankle, thermodynamics can help you heal! An endothermic reaction reduces the swelling by cooling your injury.