Natural Resources - Unit Vocabulary

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Across
  1. 3. All the living things on Earth, including plants, animals, and tiny organisms, and the places where they live.
  2. 5. The very long periods of time used by scientists to describe Earth’s history, often lasting millions or billions of years.
  3. 6. The solid parts of Earth, including rocks, soil, mountains, and the inside layers of the planet.
  4. 9. Water that is stored underground in spaces between rocks and soil. An aquifer is the underground layer that holds and moves this water.
  5. 10. The natural process that changes rocks from one type to another (igneous, sedimentary, and metamorphic) over long periods of time.
  6. 13. Energy resources formed from the remains of plants and animals that lived millions of years ago. Examples include coal, oil, and natural gas.
  7. 15. The length of time that people usually experience or observe, such as days, years, or a human lifetime.
  8. 16. Natural actions that shape and change Earth’s surface, such as earthquakes, volcanoes, weathering, erosion, and plate movement.
  9. 19. Natural, solid materials found in the Earth that have a specific chemical makeup and crystal structure, like quartz or salt.
Down
  1. 1. Natural resources that take millions of years to form and cannot be replaced quickly once they are used, like coal and oil.
  2. 2. A fossil fuel found underground that is mostly made of methane gas and is used for heating, cooking, and making electricity.
  3. 4. Natural resources that can be replaced naturally in a short amount of time, like sunlight, wind, and trees.
  4. 7. All the water on Earth, including oceans, lakes, rivers, glaciers, groundwater, and water vapor in the air.
  5. 8. Energy that comes from living or recently living things, such as plants, wood, crops, or animal waste.
  6. 9. The layer of gases (air) that surrounds Earth. It contains the oxygen we breathe and helps protect the planet from harmful sunlight.
  7. 11. The usual pattern of weather in a place over a long period of time (many years), including temperature, rain, and wind.
  8. 12. A type of mineral that is usually shiny, strong, and a good conductor of heat and electricity, such as iron, copper, and gold.
  9. 14. The ability to do work or cause change. Energy is needed to power machines, light homes, and move things.
  10. 17. A thick liquid fossil fuel found underground or under the ocean floor. It is used to make fuels like gasoline and diesel.
  11. 18. A black or dark brown rock that is burned to produce energy and electricity.