CK-12 Foundation
Ck 12: Physical Science: Why Earth Is a Magnet
[Free Registration/Login may be required to access all resource tools.] Why the Earth is a magnet and how its inner structure relates to its magnetic field.
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Ck 12: Physical Science: Using Earth's Magnetic Field
[Free Registration/Login may be required to access all resource tools.] The Earth's magnetic field and how it protects life on Earth, and how it is used for navigation.
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Ck 12: Physical Science: Earth as a Magnet
[Free Registration/Login may be required to access all resource tools.] Explains how Earth is a magnet, its geographic and magnetic poles, and its magnetic field.
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Ck 12: Life Science: Origins of Life
[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...
CK-12 Foundation
Ck 12: Physical Science: Magnetic Field Reversal
[Free Registration/Login may be required to access all resource tools.] Discusses what a magnetic field reversal is and the evidence that this has happened with the Earth.
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Ck 12: Physical Science: Orbital Motion
[Free Registration/Login may be required to access all resource tools.] Orbital motion and why it occurs, and the orbits of the Earth around the sun and the moon around the Earth.
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Ck 12: Life Science: Timeline of Evolution
[Free Registration/Login may be required to access all resource tools.] For life to evolve from simple single-celled organisms to many millions of species of prokaryotic species to simple eukaryotic species to all the protists, fungi,...
CK-12 Foundation
Ck 12: Life Science: Theory of Evolution by Natural Selection
[Free Registration/Login may be required to access all resource tools.] Do you ever wonder why some birds are big like ostriches and some birds are small like robins? Or why a lion has a mane while a leopard has spots? In the 19th...
CK-12 Foundation
Ck 12: Life Science: Human Population
[Free Registration/Login may be required to access all resource tools.] How quickly is the human population growing? If we look at worldwide human population growth from 10,000 BCE through to today, our growth looks like exponential...
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Ck 12: Earth Science: Types of Soils
[Free Registration/Login may be required to access all resource tools.] Describes different types of soil.
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Ck 12: Earth Science: Types of Soils
[Free Registration/Login may be required to access all resource tools.] Describes different types of soil.
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Ck 12: Earth Science: Universe
[Free Registration/Login may be required to access all resource tools.] How we came to understand the universe.
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Ck 12: Earth Science: Universe
[Free Registration/Login may be required to access all resource tools.] Explains how we came to understand the Universe.
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Ck 12: Earth Science: Water Pollution
[Free Registration/Login may be required to access all resource tools.] Describes the sources of water pollution.
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Ck 12: Earth Science: Weathering and Erosion
[Free Registration/Login may be required to access all resource tools.] Describes how solid rock is worn down through weathering.
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Ck 12: Earth Science: Weather Versus Climate
[Free Registration/Login may be required to access all resource tools.] Compares and contrasts weather and climate.
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Ck 12: Earth Science: Types of Soils
[Free Registration/Login may be required to access all resource tools.] Describes different types of soil.
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Ck 12: Earth Science: Wind Power
[Free Registration/Login may be required to access all resource tools.] How wind can be used to generate power, and its consequences.
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Ck 12: Atoms to Molecules
[Free Registration/Login may be required to access all resource tools.] Examine the composition of matter.
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Ck 12: Scientific Method (Basic)
[Free Registration/Login may be required to access all resource tools.] This is a basic introduction to the scientifice method that includes links to instructional videos, grade-level texts, interactive activities, and review materials.
![Caterpillar: Ground Rules: Mining Right for a Sustainable Future [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Caterpillar: Ground Rules: Mining Right for a Sustainable Future [Pdf] Lesson Plan")
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Caterpillar: Ground Rules: Mining Right for a Sustainable Future [Pdf]
This set of lesson plans was developed to accompany Ground Rules: Mining Right for a Sustainable Future, a documentary film created by Caterpillar and Science North. They introduce students to the various phases involved in mining,...
CK-12 Foundation
Ck 12: Life Science: Insects
[Free Registration/Login may be required to access all resource tools.] Insects, with over a million described species, are the most diverse group of animals on Earth. They may be found in nearly all environments on the planet. No matter...
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Ck 12: Life Science: Preserving Water Sources
[Free Registration/Login may be required to access all resource tools.] It might seem like there is plenty of water on Earth, but that's not really the case. Water is a limited resource. That means that it is used faster than it is...
CK-12 Foundation
Ck 12: Physical Science: Photosynthesis Reactions
[Free Registration/Login may be required to access all resource tools.] The process of photosynthesis and its importance in life on earth, and examples of photosynthetic organisms.