Download Standard 1-1.B “The Nebular Theory” Study Notes Please do not

Standard 1-1.B “The Nebular Theory” Study Notes
Please do not take this paper from the classroom.
Use it to complete your copy of the study notes.
1. According to the nebular theory the solar system formed as a cloud of spinning dust and
gas condensed into the sun and planets.
2. Meteorites that fall to Earth support the nebular theory because the meteorites are the
same age and composition as Earth.
3. A rotating cloud of gas and dust from which Earth’s solar system formed is called a solar
nebula.
4. Copernicus proposed a heliocentric model of the solar system in which the planets
revolve at different speeds around the sun.
5. The heavy elements that make up Earth came from evolving/exploding stars.
6. Bright new stars found in the remains of exploded star systems are made from the
elements produced by the exploded stars.
7. Centuries ago, people thought that Earth was the center of the universe and that the sun
and moon went around it because the sun and moon appear to go around Earth.
8. Galileo was arrested for publishing evidence that supported the sun-centered solar system
theory because his ideas opposed the cultural and religious practices of his time.
9. Technology has contributed to our understanding of the solar system by allowing new
types of data to be collected more quickly.
10. Telescopes have been sent to space because ground-based telescopes experience
interference from Earth’s atmosphere.
11. A refracting telescope uses a set of lenses to gather and focus light from distant objects.
12. Telescopes have been sent into space because ground-based telescopes experience
interference from Earth’s atmosphere.
13. The sun, planets, asteroids, and comets and make up our solar system.
14. Radio telescopes detect invisible electromagnetic radiation.
15. One benefit of the space program for another field of science is improved heart pumps.
16. One piece of evidence of Earth’s revolving around the sun is the varying positions of the
constellations over several weeks.
17. About 99% of all matter contained in the solar nebula now exists in the sun.
18. Hydrogen and helium made up Earth’s first atmosphere but have since been lost.
19. Mercury is so hot because it is the closest planet to the sun and it rotates slowly.
20. Young Earth formed a core, mantle, and crust in a process called differentiation.
21. The rotating cloud of gas and dust from which Earth, the planets and sun formed is
called the solar nebula.
22. Small bodies from which planets originated during the early formation of the solar
system are called planetesimals.