Treatment Works!

What do you have in common with a fruit fly? About 60 percent of your DNA. The resource, divided into two units, is intended for grades four to eight and another for high schoolers. Both units include eight lessons covering the genome as...

Young scientists explore nature's water treatment plants in this simple science demonstration. By placing a stalk of celery in a cup of water mixed with food coloring, children are able to observe how plants absorb nutrients and...

Stop the raindrops from getting into the house! Eager engineers learn about roofing history and waterproofing by nanotechnology. They get into groups and work on designing a waterproof roof for a small model house. The accompanying...

This lesson will make an impact, especially on scientist-athletes who may have an interest in waterproof clothing! Acting as materials engineers, they work collaboratively on waterproofing pieces of cotton fabric. This challenge is...

What better way to study the structures of organisms than by creating a new being? After considering different types of skeletal supports (exoskeleton and endoskeleton), budding biogeneticists work together to create their own animals -...

Arm your young scientists with knowledge about anatomy as they build their own model of the elbow joint. Help them get a firm grasp on how muscles and bones interact to allow movement as they try different positions for the muscles on...

Energy comes in many forms, but how do living things get the energy they need to survive and thrive? In a simple, controlled experiment with yeast, water, and sugar, groups make observations about how yeast reacts with water alone, then...

Biology learners read about selective breeding in chickens and how it has produced high-yield meat specimens and rapid egg-layers. The unpleasant effects of artificial selection are explored, as well as options to supporting this...

Are sled dogs experiencing cruelty by their owners? Discover the arguments against animal cruelty around the globe with this persuasive writing activity. Middle schoolers investigate the treatment of sled dogs by using Internet research....

What triggers asthma? What are the symptoms of an asthma attack? Watch a video that explains how asthma affects the respiratory system and the extra work the lungs have to do when a person is undergoing an asthma attack.