Question

name: daryl f
period: 5th
date: 9/30/25
sc.8.e.5.3
voyage across the universe
derived from: https://floridastudents.org/previewresource/studentresource/182970
essential question: what are some of the objects found in space and their characteristics?
practice 1: rank the distances of measurement from smallest to largest
____ 1. light year: measures distances across the galaxy and nearby galaxies
____ 2. parsec: measures distances across the distant objects in the universe
____ 3. kilometers: measures distances on earth
____ 4. au: measures distances across the solar system
practice 2: match the descriptions and terms
a. comet
c. asteroid
e. planet
b. meteoroid
d. moon
____ 1. smaller solid remains with many found in a large area between jupiter and mars
____ 2. orbits a planet
____ 3. icy bits of ice and dust; highly elliptical orbit
____ 4. mostly spherical; orbits a star, cleared its neighborhood of debris
____ 5. broken from an asteroid
practice 3: select the best response
____ 1. which of the following is the current best hypothesis for the formation of the solar system?
a. formed by an exploding super nova star which then collapsed and coalesced into a spinning disk forming sun and planets
b. our solar system has always been here and has never changed
c. formed from the suns explosion releasing particles into space forming planets and other objects
d. our solar system was formed by a great collision of other stars with one another
practice 4: use the hr diagram to match the descriptions with the correct stars
a. main sequence stars
c. higher temperature stars
d. red stars
b. super giants
____ 1. found more toward the right of the diagram
____ 2. found toward the left of the diagram
____ 3. found along the top portion of the diagram
____ 4. most stars are this type and also includes our sun

Explanation:

• Practice 1: Kilometers measure Earth - distances, AU for solar - system, light - year for galaxy, parsec for distant universe objects.
• Practice 2: Asteroids are in the belt between Jupiter and Mars. Moons orbit planets. Comets are icy with elliptical orbits. Planets are spherical and orbit stars. Meteoroids are broken from asteroids.
• Practice 3: The solar system formed from a collapsing and coalescing nebula from a supernova (A is closest).
• Practice 4: Red stars are on the right of HR - diagram. Higher - temperature stars are on the left. Super - giants are at the top. Main - sequence includes the Sun and most stars.

Answer:

Practice 1: 3, 4, 1, 2
Practice 2: 1. C, 2. D, 3. A, 4. E, 5. B
Practice 3: A
Practice 4: 1. D, 2. C, 3. B, 4. A