How Much Is an Ecosystem Worth?

Students explain and discuss the importance of ecosystems. They analyze the natural resources in the environment. They also suggest actions that would protect ecosystems.

When judging diversity of an ecosystem, both species evenness and species richness must contribute. After a discussion of diversity and a guided example using the Shannon-Weaver function, scholars use the same function on two other...

Enough talk about the Greenhouse Effect—let's actually look at it! Junior climatologists engage in a simple thermodynamics experiment on a cold winter's day to examine global warming. The activity simulates rising carbon dioxide levels...

Incorporate reading strategies, math, research, and the scientific method into one lesson about water conservation. After reading a story about a landlady trying to determine how many people are living in an apartment, learners develop a...

In this multiplying decimals worksheet, students research the weight of 10 common objects on Earth, then multiply by a decimal factor to find the weight of each object on the different planets. Students research how scientists calculate...

How much information can we process? How much information is stored inside us? These questions, and many more, inspired an inquisitive installment from a larger video series. From verbal and written language to DNA and computers,...

No question is a silly question! Vsauce is a website that investigates strange questions. Founder and science educator, Michael Stevens, explains the value of the such questions to an audience and demonstrates by working through the...

There are millions of plant and animal species on the planet, but why do we need so many? Follow along with this short video as it explains how biodiversity helps strengthen ecosystems, allowing them to adapt to change so that life...

Explore the role of feedback loops in maintaining nature's delicate balance with this short science video. Introducing the concepts of positive and negative feedback, multiple examples are presented that explore the intricate web of...

People associate calories with food, but what is a calorie? Young scientists measure the number of calories in samples of food to better understand the concept. They test a variety of samples, take measurements, and compare their results...