Third Planet: Earth
The third planet from the Sun is Earth. It is the only known planet to support life and is the largest of the terrestrial planets. Earth has a diverse range of environments, including oceans, mountains, deserts, and forests, making it a unique and dynamic planet.
Key Facts about Earth:
- Orbital Period: Earth takes approximately 365.25 days to orbit the Sun.
- Atmosphere: Earth's atmosphere is composed primarily of nitrogen (78%) and oxygen (21%), with trace amounts of other gases.
- Water: Earth is known as the "Blue Planet" due to its abundant water supply, with oceans covering approximately 71% of its surface.
- Continents: Earth has seven continents, including Asia, Africa, North America, South America, Antarctica, Europe, and Australia.
- Moon: Earth has one natural satellite, the Moon, which plays a crucial role in tides and stabilizing Earth's rotation.
Study Guide:
- What is the third planet from the Sun? Answer: Earth
- What is Earth's primary atmospheric gas? Answer: Nitrogen (78%) and Oxygen (21%)
- What percentage of Earth's surface is covered by water? Answer: Approximately 71%
- How long does it take Earth to orbit the Sun? Answer: Approximately 365.25 days
- How many continents does Earth have? Name them. Answer: Seven continents - Asia, Africa, North America, South America, Antarctica, Europe, and Australia
- What is the name of Earth's natural satellite? Answer: The Moon
Understanding Earth as the third planet in our solar system provides valuable insight into the unique characteristics that make it a habitable and fascinating world. Studying Earth also allows us to appreciate the importance of environmental conservation and sustainable living for the future of our planet.
.◂Science Worksheets and Study Guides Sixth Grade. Plate Tectonics
Worksheet/Answer key
Plate Tectonics 
Worksheet/Answer key
Plate Tectonics Worksheet/Answer key
Plate Tectonics Vocabulary/Answer key
Plate Tectonics Vocabulary/Answer key
Plate Tectonics Vocabulary/Answer key
Plate Tectonics Vocabulary/Answer key
Plate Tectonics
Worksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
EARTH AND SPACE SCIENCE
Earth’s Systems
Use evidence to explain how different geologic processes shape Earth’s history over widely varying scales of space and time (e.g., chemical and physical erosion; tectonic plate processes; volcanic eruptions; meteor impacts; regional geographical features, including Alabama fault lines, Rickwood Caverns, and Wetumpka Impact Crater).
Provide evidence from data of the distribution of fossils and rocks, continental shapes, and seafloor structures to explain past plate motions.
Use models to explain how the flow of Earth’s internal energy drives a cycling of matter between Earth’s surface and deep interior causing plate movements (e.g., mid-ocean ridges, ocean trenches, volcanoes, earthquakes, mountains, rift valleys, volcanic islands).