Chapter 4 Retest

Earth is the only planet in our solar system that supports life, such as humans, plants, and cats. Which conditions on Earth support life? Select TWO correct answers.

• presence of water

• a thin atmosphere

• above boiling temperatures

• distance from the Sun

• lack of carbon dioxide

Tags

NGSS.MS-ESS2-4

What are the ideal conditions for a planet to be considered habitable? Select TWO correct answers.

• The planet must have a temperature that allows liquid water to exist.

• The planet must be free of an atmosphere so that gases can move in and out of space.

• The planet should have a magnetic field to help protect it from the star's radiation.

• The planet should be as far away from the Sun as possible so that its thermal and solar energy do not overheat the planet.

• The planet should have high amounts of nitrogen and oxygen so that living organisms can survive.

Tags

NGSS.MS-ESS2-4

Both Earth and Mars are seen inside the Sun's habitable zone. While the Earth has life, life has not been found on Mars. Which of the following are reasons for life to be non-existent on Mars? Select TWO correct answers.

• Mars lacks water.

• Mars is not close enough to the Sun.

• Mars has a thin atmosphere.

• Mars has small plant species such as moss and lichens to break down rock in order to form soil.

• Mars lacks the elements needed to create carbon dioxide.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-5

The blue shaded area of the diagram represents the habitable zone in a solar system, which is the distance away from a star that produces conditions necessary for life to exist. Based on your interpretation of the diagram, which planet would have conditions closest to those found here on earth?

• Planet 1

• Planet 2

• Planet 3

• Planet 4

Tags

NGSS.MS-LS1-5

Which of the following conditions are absolutely necessary for a planet to support life? I. Planetary temperature averages are very moderate II. Composition of atmosphere contains compounds necessary for organic life III. Planetary motion included a tilted axis which results in seasons IV. Water is present in all phases V. The atmosphere contains hydrogen

• All must be present for a planet to support life

• I, II, and IV

• II and III

• II, IV, and V

Tags

NGSS.MS-LS1-5

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

What does it mean for a planet to be found within the “habitable zone” of a solar system?

• A habitable planet is the correct distance from a star making the temperature conditions possible for supporting life.

• A habitable planet is the correct distance from a star making the water cycle possible.

• A habitable planet is too far away from a star making the temperature conditions too cold for liquid water to exist.

• A habitable planet is a planet where life has been discovered by scientists.

Gravity is the force that governs all motion in the universe. Which statements accurately describe the force of gravity? Select TWO correct answers.

• Gravitational force increases as the mass of the object increases.

• Gravitational force increases as the mass of the object decreases.

• Gravitational force increases as mass and distance increase.

• Gravitational force increases as the distance between two objects increases.

• Gravitational force increases as the distance between two objects decreases.

Tags

NGSS.MS-PS2-4

Which word best completes the sentence? Object A has a ---------- gravitational pull compared to Object B.

• weaker

• magnetic

• greater

• bonded

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Astronomers track asteroids as they move throughout our solar system. The path of an asteroid is illustrated below. What force is most responsible for the path this asteroid follows?

• gravitational pull from the center of the Milky Way galaxy

• Newton’s 1st law of motion that says objects want to travel in a straight line

• centripetal force that governs objects will move in circular patterns

• the gravitational pull from the sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Select the statements that are true about asteroids. Select TWO correct answers.

• Asteroids are composed of gas.

• Asteroids are composed of rock.

• Most asteroids are located in the Milky Way between the orbits of Jupiter and Saturn.

• Most asteroids are located in the asteroid belt between the orbits of Earth and Mars.

• Most asteroids are located in the asteroid belt between the orbits of Mars and Jupiter