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Ancient Space Rubble
Asteroids are rocky fragments left over from the formation our the solar system about 4.6 billion years ago. Most of these chunks of space rubble, sometimes called minor planets, can be found orbiting the Sun in a belt between the orbits of Mars and Jupiter. The Asteroid Belt or Main Belt probably contains millions of asteroids.

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  Explore Asteroids in 3D Videos Activities

Cosmic Chemistry: Planetary Diversity
Grade Level: 9-12
Solar System Body: Our Solar System, Mercury, Venus, Earth, Mars, Asteroids, Meteors & Meteorites, Jupiter, Saturn, Uranus, Neptune, Dwarf Planets
Mission: Dawn (Dwarf Planets), InSight (Mars)

Short Description: The goal of this module is to acquaint students with the planets of the solar system and some current models for their origin and evolution. During the explorations of the Cosmic Chemistry: Planetary Diversity module, students will make decisions concerning possible patterns or groupings of the physical and chemical compositions of internal structures and atmospheres of planets. Through classroom activities, they will be encouraged to examine some contemporary models proposed to explain the origin and evolution of the planets. In the final assessment activity students will use these experiences to predict the properties of the the missing planet that could have formed in the asteroid belt.


Exploring Meteorite Mysteries: Lesson 10-Building Blocks of Planets
Grade Level: 6-8
Solar System Body: Our Solar System, Asteroids, Meteors & Meteorites

Short Description: In Activity A students will observe and describe chondrite meteorites. In Activity B they will experiment with balloons and static electricity to illustrate the theories about how dust particles collected into larger clusters. In Activity C students will manipulate magnetic marbles and steel balls to dramatically illustrate the accretion of chondritic material into larger bodies like planets and asteroids.


Structure and Properties of Matter: Ion Propulsion Module
Grade Level: 9-12
Solar System Body: Asteroids, Dwarf Planets
Mission: Dawn (Dwarf Planets)

Short Description: This module is intended to engage students and the interested public in the propulsion technology that is necessary for Dawn to complete its mission. As students interact with this module, they will gain an understanding of charges and relative charge, momentum and frames of reference, ionization and plasma, how an ion propulsion system works, and they will experiment with designing an ion engine to determine optimal conditions.


Time Lineup
Grade Level: 6-8, 9-12
Solar System Body: Our Solar System, Sun, Mercury, Venus, Earth, Mars, Asteroids, Jupiter, Saturn, Uranus, Neptune, Dwarf Planets, Comets, Kuiper Belt & Oort Cloud, Earth's Moon
Mission: ARTEMIS (Earth's Moon), Cassini (Saturn), Dawn (Dwarf Planets), Galileo (Jupiter), Hubble (Beyond Our Solar System), InSight (Mars), Juno (Jupiter), LADEE (Earth's Moon), Lunar Recon Orbiter (Earth's Moon), MSL / Curiosity (Mars), MAVEN (Mars), MESSENGER (Mercury), Viking 01 (Mars), Viking 02 (Mars), Voyager 1 (Our Solar System), Voyager 2 (Our Solar System), WISE (Our Solar System)

Short Description: Students work in groups or as a class to determine the order of events that formed our solar system. This is an excellent activity to begin discussion of events that shaped the solar system and how Earth's geosphere and biosphere have changed -- in an interrelated manner -- through time.


What is a Planet?
Grade Level: 9-12
Solar System Body: Asteroids, Dwarf Planets, Comets, Kuiper Belt & Oort Cloud, Pluto
Mission: Dawn (Dwarf Planets), New Horizons (Dwarf Planets)

Short Description: Students learn about the characteristics of planets, comets, asteroids, and trans-Neptunian objects through a classification activity. Students can then apply what they have learned by participating in a formal debate about a solar system object discovered by the New Horizons spacecraft and by defining the term "planet."

Cosmic Chemistry: Planetary Diversity
Grade Level: 9-12
Solar System Body: Our Solar System, Mercury, Venus, Earth, Mars, Asteroids, Meteors & Meteorites, Jupiter, Saturn, Uranus, Neptune, Dwarf Planets
Mission: Dawn (Dwarf Planets), InSight (Mars)

Short Description: The goal of this module is to acquaint students with the planets of the solar system and some current models for their origin and evolution. During the explorations of the Cosmic Chemistry: Planetary Diversity module, students will make decisions concerning possible patterns or groupings of the physical and chemical compositions of internal structures and atmospheres of planets. Through classroom activities, they will be encouraged to examine some contemporary models proposed to explain the origin and evolution of the planets. In the final assessment activity students will use these experiences to predict the properties of the the missing planet that could have formed in the asteroid belt.


Exploring Meteorite Mysteries: Lesson 10-Building Blocks of Planets
Grade Level: 6-8
Solar System Body: Our Solar System, Asteroids, Meteors & Meteorites

Short Description: In Activity A students will observe and describe chondrite meteorites. In Activity B they will experiment with balloons and static electricity to illustrate the theories about how dust particles collected into larger clusters. In Activity C students will manipulate magnetic marbles and steel balls to dramatically illustrate the accretion of chondritic material into larger bodies like planets and asteroids.


Structure and Properties of Matter: Ion Propulsion Module
Grade Level: 9-12
Solar System Body: Asteroids, Dwarf Planets
Mission: Dawn (Dwarf Planets)

Short Description: This module is intended to engage students and the interested public in the propulsion technology that is necessary for Dawn to complete its mission. As students interact with this module, they will gain an understanding of charges and relative charge, momentum and frames of reference, ionization and plasma, how an ion propulsion system works, and they will experiment with designing an ion engine to determine optimal conditions.


Time Lineup
Grade Level: 6-8, 9-12
Solar System Body: Our Solar System, Sun, Mercury, Venus, Earth, Mars, Asteroids, Jupiter, Saturn, Uranus, Neptune, Dwarf Planets, Comets, Kuiper Belt & Oort Cloud, Earth's Moon
Mission: ARTEMIS (Earth's Moon), Cassini (Saturn), Dawn (Dwarf Planets), Galileo (Jupiter), Hubble (Beyond Our Solar System), InSight (Mars), Juno (Jupiter), LADEE (Earth's Moon), Lunar Recon Orbiter (Earth's Moon), MSL / Curiosity (Mars), MAVEN (Mars), MESSENGER (Mercury), Viking 01 (Mars), Viking 02 (Mars), Voyager 1 (Our Solar System), Voyager 2 (Our Solar System), WISE (Our Solar System)

Short Description: Students work in groups or as a class to determine the order of events that formed our solar system. This is an excellent activity to begin discussion of events that shaped the solar system and how Earth's geosphere and biosphere have changed -- in an interrelated manner -- through time.


What is a Planet?
Grade Level: 9-12
Solar System Body: Asteroids, Dwarf Planets, Comets, Kuiper Belt & Oort Cloud, Pluto
Mission: Dawn (Dwarf Planets), New Horizons (Dwarf Planets)

Short Description: Students learn about the characteristics of planets, comets, asteroids, and trans-Neptunian objects through a classification activity. Students can then apply what they have learned by participating in a formal debate about a solar system object discovered by the New Horizons spacecraft and by defining the term "planet."