Meteoroids
A meteoroid is a small rocky or metallic body travelling through space. These objects are significantly smaller than asteroids and can range in size from small grains to about 10 meters in diameter. Meteoroids are remnants from the formation of the solar system and can be composed of various materials including rock, metal, and even ice.
Characteristics of Meteoroids:
- Size: Meteoroids can vary in size from tiny particles to about 10 meters in diameter.
- Composition: They can be composed of rock, metal, or a combination of both.
- Origin: Most meteoroids originate from asteroids or comets.
- Speed: They travel through space at high velocities, often exceeding 11 km/s.
Study Guide:
Here are some key points to remember about meteoroids:
- What is a meteoroid?
- What are the typical sizes of meteoroids?
- What are the different compositions of meteoroids?
- Where do most meteoroids originate from?
- What is the typical speed of meteoroids?
Additionally, students may want to explore the difference between meteoroids, meteors, and meteorites, and how meteoroids interact with Earth's atmosphere to create meteor showers.
Understanding meteoroids is important for understanding the formation of the solar system and the potential hazards they may pose to our planet.
[Meteoroids] Related Worksheets and Study Guides:
.◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.