Past Distribution of the zebra mussel
After their introduction to the United States in 1988, Zebra mussels were present in small numbers in the Great Lakes region.
Moss plant spore capsules
Mosses are the most well-known bryophytes and lack vascular tissue. Bryophytes reproduce by spore germination. The spores are released by the capsule atop the stalk-like structure growing from the plant. Because spores are dispersed by wind, bryophytes are found world-wide.
Old Macdonald Had A Farm
Excellent computer animated video song for children. (3:21)
Early Movements in Science: Atoms
Early efforts made by scientists in India yielded atomic theories. These theories explained that everything in the world is made of atoms.
SSPD_Chapter 7_Part 6_Basic Circuit Concepts_concluded
SSPD_Chapter 7_Part 6_Basic Circuit Concepts_concluded This module concludes the basic circuit concepts by giving the analysis of the parasitic capacitances associated with fringing-field effect, […]
Franklin the Turtle
Fresh or Salty?
Between 70 and 75% of the Earth's surface is covered with water and there exists still more water in the atmosphere and underground in aquifers. In this lesson, students learn about water bodies on the planet Earth and their various uses and qualities. They will learn about several ways that engineers are working to maintain and conserve water sources. They will also think about their role in water conservation.
Growing and Graphing
Students visit a 2nd and a 4th grade class to measure the heights of older students using large building blocks as a non-standard unit of measure. They can also measure adults in the school community. Results are displayed in age-appropriate bar graphs (paper cut-outs of miniature building blocks glued on paper to form a bar graph) comparing the different age groups. The activities that comprise this lesson help students develop the concepts and vocabulary to describe, in a non-ambiguous way, ho
This worksheet contains a hundred square and a number of addition sums.
Subtraction of Two Numbers
Worksheet containing problems involving subtraction of two numbers using a number strip.
What's Down the Well?
This activity looks at physical models of groundwater and how environmental engineers determine possible sites for drinking water wells. During this activity, students will create their own groundwater well model using a coffee can and wire screening. The students will add red food coloring to their model to see how a pollutant can migrate through the groundwater into a drinking water resource.
Pain molecule discovery opens door to new treatments
July 15 - Scientists in the UK have discovered the molecule that causes pain in sunburn, and say further research could lead to treatments for other inflammatory conditions like arthritis and cystitis. Basmah Fahim reports.
Can firms shape their environments to gain an architectural advantage?
Michael G Jacobides, Associate Professor of Strategic and International Management talks about how firms can shape their environments to gain an architectural advantage.