Venus is sometimes thought of as Earth's sister planet. In some ways the two planets are very similar. Venus is only slightly smaller than Earth. Venus also has a similar density and chemical composition. Yet Venus does not support life like Earth. What is one important reason why Venus cannot support life as we know it?

Venus' surface temperature is about 480 o C.

The water on Venus' surface is too hot to support life.

Venus' dense clouds keep the planet's temperature very low.

What would happen if the distance of a planet from the Sun was doubled?

The planet’s year length would be longer.

The planet’s mass would be doubled.

The planet’s day length would be shorter.

The planet’s orbital period would become shorter.

The bar graph compares the orbital speeds of the planets. Which of these conclusions can definitely be drawn from the graph?

The orbital periods of the planets increase with increasing distance from the Sun.

The mass of the planets increases with increasing distance from the Sun.

The planet's rotation speed increases with increasing distance from the Sun

The gravitational pull of the Sun decreases with increasing distance from the Sun.

Where are you? On Earth, the third planet from our sun. But where are you in the bigger picture of the universe? Order the components of our universe as you try to find the place of Earth in space. Start small and go big.

Sun - Solar System - Milky Way Galaxy - Local Group - Universe

Sun - Local Group - Solar System - Milky Way Galaxy - Universe

Solar System - Sun - Local Group - Milky Way Galaxy - Universe

Local Group - Sun - Solar System - Milky Way Galaxy - Universe

A student is comparing the three types of celestial bodies, comets, asteroids, and meteor. Which questions would yield the most information about a celestial body passing close by the Earth and why? Select ALL that apply.

Is the object made of ice and dust? If so, it is likely a comet.

Is the object between Mars and Jupiter? If so, it is likely an asteroid.

Is the object a smaller piece broken from a larger body? If so, it is likely a meteor.

Is the object larger than 5 km in width? If so, it is a meteor

Is the object comprised of mostly gas? If so, it is likely an asteroid.

Examine the model shown here for planetary orbit around the sun. If a student wants to refine the model to accurately reflect the causes of the planetary orbit, how should the student best label the arrows shown in the model? Select ALL answers that apply.

The yellow arrow should indicate gravitational force by the sun.

The blue arrow should indicate inertia that keeps the planet in motion.

The yellow arrow should indicate momentum, as the mass of the Earth is affecting its speed

The blue arrow should indicate acceleration as the planetary motion speeds up throughout its orbit.

Both arrows should indicate electromagnetic attraction between the Earth and other objects in the solar system.

In order to create a model of the universe, a student needs to include certain components. Using the images shown here, how should the student label the components in order to accurately represent the components in the universe? Select ALL statements that apply.

The middle image represents the solar system, which is larger than the Earth.

The first image represents the Earth, which is smaller than the other components.

The third image (on the right) represents the Milky Way, which is larger than the solar system.

The middle image is the Milky Way, which is housed within the solar system.

The third image (on the right) is the universe, which only contains a single galaxy.

Gravity is a force that attracts objects toward each other. Anything with mass has a gravitational pull. While everyday objects like tables and chairs have mass, their masses are not large enough to have significant amounts of gravitational force. Effects of gravity are more obvious when observing massive objects like planets and moons. Think about how gravity affects massive objects in the solar system. Choose THREE correct statements about the effects of gravity of Earth, the moon, and within space.

The moon has less gravitational force than Earth because it is smaller and has less mass.

The Sun has more gravity than any planet in the solar system because it has the most mass.

The Sun's gravitational pull is what keeps the planets in its solar system in orbit.

The orbit of each planet in the solar system is controlled by its moon(s).

Earth's tides are affected most by the Sun's gravitational force.

Can you correctly identify four facts about these two historical models of the solar system?

Ptolemy's model, model B, was called the geocentric model.

The geocentric model proposed that the Earth did not move but the other planets did.

Kepler's rule's of motions of the planets are based on the heliocentric model.

Initially, heliocentric meant that the Sun was the center of the universe, but as astronomers studied the movement of the planets, that was changed.

Galileo's model, A, was called the heliocentric model.

Unit 1 Review

Authored by Sha'condria West

Science

6th Grade

NGSS covered

Used 1+ times

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26 questions

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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

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.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Planet ⇒ ____________ ⇒ Galaxy ⇒ Universe

What is missing in the ordered sequence of the cosmos?

Sun

Earth

Nebulae

Solar System

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can you tell about the location of the Sun from this illustration of the Milky Way?

It is outside of the Milky Way.

It is near an outer arm of the Milky Way.

It is on the right side of the Milky Way.

It is within the Central Bulge of the Milky Way.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this illustration, the rings around the Sun represent

orbits.

sun rays.

radiation.

dust particles.

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

gravity.

inertia.

strong force.

electromagnetic.

If the force of gravity between the Sun and the planets disappeared, what would happen to the path the planets follow?

They would continue to rotate around the sun.

The planets velocity would increase as it got closer to the sun.

The speed at which they are moving would significantly slow down.

They would move in a straight line at a constant speed and velocity.

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Unit 1 Review

Which list is organized from SMALLEST to LARGEST?

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

Planet ⇒ ____________ ⇒ Galaxy ⇒ Universe

What is missing in the ordered sequence of the cosmos?

What can you tell about the location of the Sun from this illustration of the Milky Way?

In this illustration, the rings around the Sun represent

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

If the force of gravity between the Sun and the planets disappeared, what would happen to the path the planets follow?

The image in the picture is

Which observed feature of the universe, discovered by Edward Hubble, is illustrated in the diagram?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Unit 1 Review

Which list is organized from SMALLEST to LARGEST?

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

Planet ⇒ ____________ ⇒ Galaxy ⇒ UniverseWhat is missing in the ordered sequence of the cosmos?

What can you tell about the location of the Sun from this illustration of the Milky Way?

In this illustration, the rings around the Sun represent

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

If the force of gravity between the Sun and the planets disappeared, what would happen to the path the planets follow?

The image in the picture is

Which observed feature of the universe, discovered by Edward Hubble, is illustrated in the diagram?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Planet ⇒ ____________ ⇒ Galaxy ⇒ Universe

What is missing in the ordered sequence of the cosmos?