In this set of activities, the path the Sun takes in relation to the Earth is tracked by students on two days, with three months in between them. They will develop an understanding of what causes the seasons as they examine the effects...

In this activity, students' will explore how the tilt of the earth's axis results in different amounts of solar radiation at different times of the year, causing seasons. They will simulate the earth's warming using a light bulb that...

Explore what causes the change of seasons on the Earth.

A well-designed science investigation that has learners examine and graph seasonal temperature data from cities at different latitudes. They describe trends they see, and explain what they think causes these trends. They then identify...

In this interactive tutorial students will learn what causes the seasons, diurnal cycles and how the constellations move through the sky. Learn we are able to see other planets and how astronomical events affected life on the Earth.

Students graph data reflecting time of day and length of shadow, and then draw conclusions about Earth's seasons and position in relation to the Sun.

Find out what the seasons are and how they change. Through the use of excellent graphics, content explores the Earth's orbit around the sun and how sunlight reaches the earth at equinox and the winter solstice.

[Free Registration/Login may be required to access all resource tools.] Have you seen the leaves of plants change colors? During what time of year does this happen? What causes it to happen? Plants can sense changes in the seasons....

A great resource for information about SAD. Read about the symptoms, what causes SAD, how it was discovered that light is the key, and the role that melatonin plays in SAD. Also given are some tips for avoiding the "winter blues".

Explore this interactive to see what season it is in different cities around the world at different times of the year.

Students learn what causes hurricanes and what engineers do to help protect people from destruction caused by hurricane winds and rain. Research and data collection vessels allow for scientists and engineers to model and predict weather...

Comments on the Gulf Oil Spill provide author's thoughts on the chemical dispersants being used. Are these dispersants helping? Do they cause more of a threat than the oil itself? What will the impact be on human and wildlife? Also,...