7th grade Final Exam

Kevin is taking a meteorology class in which he studies weather and climate. He learns that Earth’s position relative to the sun determines the seasons. For example, more sun shines on the Northern Hemisphere in July than in December. Why does the sun shine more directly on Earth’s Northern Hemisphere during the summer months?

• The rotation of the sun makes temperatures warmer.

• The tilt of Earth’s axis tips the Northern Hemisphere toward the sun

• The gravitational pull toward the sun is stronger in August.

• Earth’s orbit is nearest to the sun in the summer

Tags

NGSS.MS-ESS1-1

The National Oceanic and Atmospheric Administration (NOAA) is a government agency that provides information on water levels, currents, and tides. Scientists at the NOAA track high and low tides to help ships to navigate more safely. Monitoring tides is an important job. Explain what causes high and low tides.

• gravitational pull of the moon

• gravitational pull of the sun

• gravitational pull of the earth

• day and night

Tags

NGSS.MS-ESS1-1

Adam and his family are planning a trip to Alaska in either June or December. During the summer months in the Northern Hemisphere, the weather is typically warmer and the days are longer. During the winter months in the Northern Hemisphere, the weather is typically cooler and the days are shorter. Adam’s family decides to travel in June based on this information. Why does Earth have seasons?

• because Earth rotates on its axis as it revolves around the sun

• because Earth’s axis is tilted as it revolves around the sun

• because the moon blocks the sun during the winter months

• because the moon’s gravitational pull is stronger during the summer months

Tags

NGSS.MS-ESS1-1

Emma is creating a model of the sun, Earth, and moon. She uses wire to keep the three objects in orbit around each other. Emma knows that Isaac Newton’s law of universal gravitation states that every object in the universe attracts every other object. This attraction keeps Earth in orbit around the sun and the moon in orbit around Earth. Explain how the alignments of the sun, moon, and Earth cause the different phases of the moon.As the moon revolves around Earth it reflects different amounts of Sun light

• As the moon revolves around Earth it reflects different amounts of Sun light

• The Moon is blocked by the Sun

• Because of Eclipsed

• Because of Moons rotation on it's axis

Tags

NGSS.MS-ESS1-1

A ___________ occurs when the moon casts a shadow on earth and a __________ occurs when the earth casts a shadow on the moon.

• Lunar eclipse, solar eclipse
• Solar eclipse, lunar eclipse
• Solar eclipse, stellar eclipse
• Stellar eclipse, lunar eclipse

Tags

NGSS.MS-ESS1-1

Identify the two motions of Earth in space. Explain what each motion causes.

• rotation around the axis causes day & night

• revolution around the sun causes seasons

• gravity causes seasons

• orbit causes day and night

Tags

NGSS.MS-ESS1-1

What two factors affect the force of gravity exerted between 2 objects? (choose 2)

• The mass of an object

• The orbital path of an object

• The color of an object

• The distance between objects

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Kevin is taking a meteorology class in which he studies weather and climate. He learns that Earth’s position relative to the sun determines the seasons. For example, more sun shines on the Northern Hemisphere in July than in December. Choose the words to finish the sentence A & B.

A. The __________ occurs twice each year. It is the day when the sun appears at either its highest or lowest point in the sky.

B. The __________ also occurs twice each year. It is the day when the sun passes directly overhead at noon if you were standing on the equator. On these days, night and day are both twelve hours long.

• A. rotation

  B. revolution

• A. Solstice

  B. Equinox

• A. Equinox

  B. Eclipse

• A. Lunar eclipse

  B. Solar eclipse

Tags

NGSS.MS-ESS1-1

Select the best conclusions about what season you would expect it to be in the picture below. Select all answers that apply.

• It is summertime in the northern hemisphere.

• It is summertime in the southern hemisphere.

• It is wintertime in the northern hemisphere.

• It is wintertime in the southern hemisphere.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

The planets of our solar system formed within a disk of dust and gas that revolved around the sun. The inner planets are small, rocky, and hot. The outer planets are cold, gaseous giants. Which statement best explains this pattern of planet formation?

• The gravitational pull of the sun grows stronger with distance. This allowed large planets that can hold thick atmospheres to form farther away.

• The inner planets are warmer because they are close to the sun, but the size of the planets varies due to chance.

• The larger planets are colder because they are far from the sun. Their large masses allowed them to trap gases into thick atmospheres.

• The strong gravity of the sun pulled massive clumps of matter inward, causing small planets to form close to the sun and large planets to form farther away. The varying temperature of the planets is due to their different masses.

Tags

NGSS.MS-ESS1-2