Unit 1 - The Universe ATT 2025

What object orbits Earth in both the geocentric and the heliocentric models of our solar system?

• The Sun

• The Moon

• The asteroid belt

• Haley's comet

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GA.S6E1.a

A student wants to create a model to represent change in the universe over time. Which of the following models best meets the student's goal?

• The students can poke holes in a black sheet of paper and then shine light on it.

• The student can draw dots on a balloon and then blow air into the balloon.

• The student can allow grains of sand to slowly fall into a spherical container.

• The student can open the stopper on an inflated beach ball and deflate the ball.

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GA.S6E1.a

Over time, scientists have changed their model of our solar system. It has transitioned from

• a Sun-centered to a Moon-centered model.

• a Sun-centered to an Earth-centered model.

• an Earth-centered to a Sun-centered model.

• a Moon-centered to an Earth-centered model.

Tags

GA.S6E1.a

For what reason did the heliocentric model of the universe replace the geocentric model of the universe?

• The geocentric model no longer predicted the positions of the constellations.

• The heliocentric model proved that the Earth rotates.

• The heliocentric model provides a simpler explanation of the motions of the planets.

• The geocentric model did not predict the phases of the moon.

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GA.S6E1.a

Which list is organized from SMALLEST to LARGEST?

• Planet, Galaxy, Solar System, Universe

• Solar System, Planet, Universe, Galaxy

• Universe, Solar System, Planet, Galaxy

• Planet, Solar System, Galaxy, Universe

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GA.S6E1.b

What is the most common type of galaxy?

• spiral

• elliptical

• irregular

• solar system

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GA.S6E1.b

What is made up of everything - stars, families of stars, solar systems, planets, moons, comets, space rocks, dust, gases, and energy?

• solar system

• universe

• solar system and universe

• none of the above

Tags

GA.S6E1.b

Which letter in the illustration represents where our solar system is located in the Milky Way Galaxy?

• Position A

• Position B

• Position C

• Position D

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GA.S6E1.b

One of the conditions for a planet to support life is to have a surface temperature that allows for water to exist as a solid, liquid, or a gas.

The boiling point of water is 212°F, and the freezing point is 32°F.

Based on the data in the table , which planet has the ability to support life?

• A. Planet A because it is the closest to the sun and its surface temperature allows water to be a gas.

• B. Planet B because its distance from the sun allows a temperature for water to change states.

• C. Planet C because it is far enough away from the sun to allow water to exist as a liquid.

• D. Planet D because it is the farthest away of all the planets where water will only exist as solid.

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GA.S6E1.c

What do all inner planets have in common?

• Period of Revolution

• Rocky Surface

• Period of Revolution

• Size

Tags

GA.S6E1.c