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

an Earth-centered to a Sun-centered model.

a Sun-centered to a Moon-centered model.

a Sun-centered to an Earth-centered model.

a Moon-centered to an Earth-centered model.

Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and the Sun

are much smaller than the Earth.

move more quickly than the Earth.

A meteorite is DIFFERENT from a comet mainly because it

enters the Earth’s atmosphere.

has a nucleus made of snow and rock.

is found in orbit between Mars and Jupiter.

Which statement best describes the position of the Earth in the Solar System?

The Earth is closer to the Sun than Jupiter.

The Earth is the planet closest to the Sun.

The Earth is the planet farthest from the Sun.

The Earth is farther from the Sun than Jupiter

We can watch the phases of the moon change, day by day. A complete cycle of phases takes about ___________ to complete.

three months or a quarter of a year

Planets in our solar system travel in their own orbital paths around the Sun. What causes the planets to continuously orbit the Sun instead of floating away into space?

The Sun's large mass causes it to have significant gravitational force, holding planets in their orbital paths.

Not enough room is available in space for planets to float freely.

The planets' magnetic poles prevent them from leaving their orbital paths.

Gravitational pulls of planets' moons are too strong for planets to float away.

Which bodies are composed primarily of rock and metal?

asteroids, meteoroids, and meteorites

How do wind and water change rocks over time?

They change the shape of the rocks.

They add minerals to the rocks.

They increase the mass of the rocks.

They build up the rocks with small sand particles.

What would MOST LIKELY cause the rock to break apart if ice wedging is occurring?

Earthquakes cause the rock to crack.

forms around volcanoes and forms when magma hardens

forms around volcanoes and has fossils

found deep in earth and has layers

formed by heat and pressure and found deep beneath Earth's surface

forms around volcanoes and when magma hardens

formed by heat and pressure and when layers are packed and harden

form by sediments compacting and cementing together

form with the cooling of magma and lava

Which lists the Earth's location in order from LEAST to MOST specific cosmic location?

the Universe, Milky Way Galaxy, the Solar System

Milky Way Galaxy, the Solar System, the Universe

Milky Way Galaxy, the Universe, the Solar System

the Solar System, Milky Way Galaxy, the Universe

How are Saturn and Uranus similar?

They both have rings around them.

They are about the same distance from the Sun.

Which planets have moons?

Both Terrestrial and Gas planets

Semester 1 Practice 2025

Authored by Tina McDaniel

Science

6th Grade

NGSS covered

Used 75+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about the universe is NOT correct?

Each galaxy contains billions of stars.

The universe contains billions of galaxies.

You may not see all stars with the naked eye.

Each solar system contains billions of galaxies.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which location of the moon relative to the sun and earth may produce a solar eclipse?

Which is located furthest from our sun?

comets

meteors

other stars

asteroid belt

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The planets close to the Sun are

small and rocky.

large and rocky.

small and gaseous.

large and gaseous.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Sun and the planets are part of the solar system. ________________ are found outside of our solar system

Stars in a nearby galaxy

Asteroids in orbit around the sun

Comets that appear to people on Earth

A meteorite that strikes the planet Mars

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

Big Bang Theory

Radiation Theory

Red Shift Theory

Butterfly Effect Theory

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Semester 1 Practice 2025

Which list is organized from SMALLEST to LARGEST?

Which statement about the universe is NOT correct?

Which location of the moon relative to the sun and earth may produce a solar eclipse?

Which is located furthest from our sun?

The planets close to the Sun are

The Sun and the planets are part of the solar system. ________________ are found outside of our solar system

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

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

Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and the Sun

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

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