Can they extend this one level up the food chain to predators? Track the movement of two migratory birds of prey—ospreys and turkey vultures—as they travel between North and South America over a single calendar year. Assist your students to make connections as to how populations of organisms are dependent on the living things on which they prey. Have an idea you'd like us to post on this page? Email us. Visualizations based on aggregated data provide the unique opportunity to engage your students in various Science Practices highlighted in the Next Generation Science Standards, including asking questions, analyzing and interpreting data, and constructing explanations.
As an example, Academy educators developed sample activities such as this one and this one. Astronomy Activities You'd be surprised by how much astronomy you can learn with a light source, some painter's tape, and a can of play doh.
This collection features nine of our most popular activities. Why do we have seasons? The Reason for the Seasons This website gives background information of why we have seasons and visualizes the angle of sunlight one of the reason of the seasons. Travel underground for an up-close look at the ants, amoebas, and bacteria that maintain healthy soil.
Plunge into a California kelp forest and learn about the complex, colorful ecosystems right off our coast. Browse a rich array of educational resources from the award-winning show, Habitat Earth.
Our collection of educational videos will help your students visualize data and understand scientific concepts. Sign up for event updates and exciting announcements. Learn more. Reservations are required for the planetarium and are available on a first-come, first-served basis.
More info. Earth has seasons because sometime early in its long history, something very big hit the young Earth to knock it off-kilter. So instead of rotating with its axis perpendicular to its orbital plane, it is tilted Incidentally, that big something that hit Earth also knocked a chunk of it out that became our Moon.
At least that is generally accepted theory. And, believe it or not, aphelion when Earth is farthest from the Sun occurs in July, and perihelion when we are closest occurs in January. For those of us who live in the Northern Hemisphere where it's summer in July and winter in January, that seems backwards, doesn't it?
That just goes to prove that Earth's distance from the Sun is not the cause of the seasons. What Causes the Seasons? The Short Answer:. Earth's tilted axis causes the seasons.
Throughout the year, different parts of Earth receive the Sun's most direct rays. However, our planet's distance from the Sun has little effect on the onset of seasons. In fact, Earth is closest to the Sun , or at its Perihelion, around the Northern Hemisphere's winter solstice, while it is farthest away from the Sun, or at its Aphelion, around the north's summer solstice.
However, because there are relatively few landmasses south of the equator and oceans take more time to heat up, the temperature difference between the northern and southern summers is very small.
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