Core Teacher Resources
Find Core lesson plans and worksheets
Showing 1 - 24 of 129 resources
How We Know About the Earth's CoreLesson Planet
6 mins 8th - 11th
The big question is, how do we know about the composition of the earth's core? Sal explains that at 105 degrees from the source point of an earthquake the phenomena of p wave shadow zone leads us to conclude that the waves are traveling...
Characteristics of Inner PlanetsLesson Planet
4th - 8th CCSS: Adaptable
Aspiring astronomers assess the inner planets using this handout. They read about the characteristics of each, noting that all four of them have rocky surfaces. Rotation and revolution are introduced, including Venus' retrograde...
Why Does The Earth Have Layers?Lesson Planet
5 mins 6th - 12th
How is the Earth like an onion? In this video from PBS Digital Studios, viewers first learn the different layers of Earth and their properties. In addition, they hear how these layers came about, starting with the Big Bang theory and the...
Lesson One: The Earth, Background and GlossaryLesson Planet
6th - 8th CCSS: Adaptable
How much do you really know about our planet? Middle schoolers build up their prior knowledge about Earth, its placement in the solar system, its composition, and important geological vocabulary with an introductory earth science lesson.
What If the Earth Were Hollow?Lesson Planet
4 mins 9th - 12th
Man has dreamed of outer space travel for hundreds of years...but, what about inner-Earth travel? Could it work? Young scientists explore the notion of jumping into a hole through Earth and the factors that affect the journey, such as...
Structure and Composition of the EarthLesson Planet
5 mins 9th - 12th
Why is Earth different from other planets? What makes it so special, anyway? It's only fitting to delve into how the "parent" rock was formed in the first installment of a seven-part series about rocks and rock formation. Amateur...
Could Comets Be the Source of Life on Earth?Lesson Planet
4 mins 7th - 12th CCSS: Adaptable
For thousands of years people have observed comets as they pass through the solar system, but could there be more to these celestial bodies than meets the eye? Watch this video to learn how these objects have recently been found to...