Unit 7 Review Game: Astronomy 2023

The planets close to the Sun are

• large and rocky.

• large and gaseous.

• small and rocky.

• small and gaseous.

The universe has existed for approximately

• 13.7 million years.

• 13.7 light-years.

• 13.7 thousand years.

• 13.7 billion years.

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Which theory do scientists believe MOST LIKELY explains the creation of the universe?

• Red Shift Theory

• Big Bang Theory

• Radiation Theory

• Butterfly Effect Theory

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

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

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

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

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

Our Solar System is in the Milky Way galaxy. What shape is this galaxy?

• spiral

• triangular

• oval

• rectangular

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NGSS.MS-ESS1-2

Almost everything in the universe orbits around a central object. The planets orbit the Sun and Moons orbit planets. The force MOST responsible for these orbits is

• strong force.

• gravity.

• electromagnetic.

• inertia

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Which characteristic of the Sun is MOST responsible for keeping the planets in orbit?

• its color

• it is made of hydrogen and helium

• its mass

• it is located in the center of the solar system

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

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Unlike Earth, the planet Mars cannot support life. To give the planet Mars the ability to support life, people would have to find a way to change the planet’s

• atmosphere.

• surface.

• temperature.

• size

Which planetary body has the GREATEST gravitational pull?

• Neptune

• the Moon

• the Earth

• Jupiter

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Venus has about the same mass as Earth and is about the same distance from the Sun. Yet Venus does not support life. An important difference between Earth and Venus is that Venus lacks

• an atmosphere.

• gravity and water.

• a similar chemical composition.

• water and moderate temperatures.

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NGSS.MS-ESS2-4