8th Grade Science

Comprehensive study of physical, life, and Earth sciences with scientific inquiry.

Scientific Inquiry & The Scientific MethodMatter and Its PropertiesCells and Living SystemsEarth’s Structure and Resources
Forces, Motion, and EnergyGenetics and HeredityWeather, Climate, and Human Impact
Scientific Problem Solving in Daily LifeConserving Resources and RecyclingMaking and Interpreting Scientific Models
Analyzing Data and GraphsAnswering Open-Ended Science QuestionsUsing Process of Elimination
Scientific Inquiry &...Matter and Its Prope...Cells and Living Sys...Earth’s Structure an...Forces, Motion, and ...Genetics and Heredit...Weather, Climate, an...Scientific Problem S...Conserving Resources...Making and Interpret...Analyzing Data and G...Answering Open-Ended...Using Process of Eli...
Basic Concepts

Earth’s Structure and Resources

Layers of Our Planet

Earth is made up of several layers: the crust, mantle, outer core, and inner core. These layers have different properties and materials.

Plate Tectonics

The crust is broken into huge plates that move slowly. Their movement causes earthquakes, volcanoes, and the formation of mountains.

Earth’s Resources

Earth gives us valuable resources like water, soil, minerals, and fossil fuels. We use these every day—for drinking, building, and producing energy.

Conserving Resources

It’s important to use Earth’s resources wisely so they don’t run out and to protect the environment.

Real-World Connections

  • Recycling conserves natural resources.
  • Building earthquake-resistant structures helps keep people safe.

Examples

  • Mountains forming from the collision of tectonic plates.

  • Using wind turbines to generate renewable energy.

In a Nutshell

Earth is made of layers and provides resources we must use wisely.

Key Terms

Crust
The thin, outermost layer of the Earth.
Mantle
The thick, middle layer of the Earth.
Renewable Resource
A resource that can be replaced naturally.
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Forces, Motion, and Energy