Results

What is the acceleration due to gravity at the space station.

Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms. 

Why do astronauts appear weightless despite being near the Earth?

This online article delves into our the sun and planets were formed.

Basics of gravity and the Law of Universal Gravitation.

These four short online lessons will cover the following:

• The planets of the solar system
• Planet orbits in the solar system
• Gravity in the solar system
• Inner vs outer planets

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

This unit is about how things move along a straight line or, more scientifically, how things move in one dimension. Examples of this would be the movement (motion) of cars along a straight road or of trains along straight railway tracks.

This short online lesson discusses the planet Jupiter.

This short online lesson explores the planet Mars.