Unit 6 Science Review

The United States has landed a device on Mars. Using this device, which question can now be answered that could not be answered before?

• What is the soil like on Mars?

• What shape and color is Mars?

• How far away is Mars?

• Does Mars have any moons?

Tags

NGSS.MS-PS1-1

Which of the following is an accurate description of one of the differences between planets and stars?

• Planets are only found outside our solar system; all stars are inside our solar system.

• Stars appear to move back and forth in the night sky, while planets appear to move in an orbit..

• Planets can be seen because they reflect light; stars can be seen because they give off light.

• Planets are always made up of pure gas, while stars are solid.

This table lists information about two types of objects that can be seen in the night sky. Which of the following will correctly complete the table by filling in the missing characteristic of Object Type 1?

• Releases large amounts of heat energy           

• Many of them are larger than the Sun

• Does not twinkle when viewed in the night sky

Tags

NGSS.MS-ESS1-3

A scientist is using a telescope to search for planets outside the Solar System. She finds a rocky object orbiting a bright object. Which of these is true?

• The rocky object is a planet because it is orbiting a star.

• The rocky object is a star because it is orbiting a planet.

• The bright object is a planet because it stays in one place in the constellation.

• The bright object is a star because it moves to different locations in the constellation.

Use the information to answer the following question. A student uses the following model of the solar system. Which limitations does the model have?

• It does not show how relative size or show that the planets orbit around the Sun.

• It does not show the order of the planets from the Sun or the composition of the planets.

• It does not show the composition of the planets or the relative size.

• It does not show how the planets orbit around the Sun or the composition of the planets.

Tags

NGSS.MS-ESS1-3

Use the information from the model to answer the following question. Which of the following is a strength of the solar system model?

• the model attempts to show the composition of the planets

• the model attempts to show the distance between the planets to scale

• the model attempts to show the size of the planets

• the model attempts to show the differences in how the planets look

Tags

NGSS.MS-ESS1-3

Organize these options into the right categories

Groups:

(a) Sun

,

(b) Earth

,

(c) Moon

• Rotates on its axis every 25-35 days

• Is smaller and has less gravity than Earth

• Revolves around the sun every 365 days

• Is mostly made of gases like hydrogen and helium

• Has little to no atmosphere

• Star

• Planet

• Produces its own light

• Largest object in the solar system

• Reflects and absorbs light from the sun

• Rotates on its axis every 24 hours

• Is larger and has more gravity than Earth

• Satellite

• Reflects light from the sun

• Rotates on its axis every 27 days

• contains solid, liquid, and gaseous water

• does not contain water

• contains only solid water (ice)

• can support life

• Revolves around the earth every 27 days

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

If the Earth spun on its axis FASTER, the days would be ​ (a)  

If the Earth spun on its axis SLOWER, the days would be ​ (b)  

• shorter.

• longer.

Rotation vs. Revolution

Groups:

(a) Rotation

,

(b) Revolution

• 
• Day/Night

• 
• 
• Seasons/Years

• 365 days

• 
• Spinning on its axis

• Orbiting around another object

• 24 hours

Tags

NGSS.MS-ESS1-1

Match the following

• imaginary line that object spins around

• orbit

• caused by Earth's tilt & revolution

• seasons

•   orbit of an object around another

• axis

• the spinning of a planet on it’s axis

• rotation

• the path an object takes as it revolves

• revolution

Tags

NGSS.MS-ESS1-1