CBA #3 Science

How could a large rock be broken apart? Select the words that complete the explanation.

• cook, evaporates

• weather, freezes

• erode, warms

• weather, evaporates

Answer explanation

A large rock can be broken apart through weathering, which involves the rock freezing and thawing. This process causes cracks to form and eventually leads to the rock breaking into smaller pieces.

Tags

NGSS.MS-ESS2-2

When rain soaks into the ground, the water may collect in an aquifer. Why are the rocks in an aquifer able to hold water?

• The rocks are impermeable, so water is able to seep into them.

• The rocks are porous and permeable, and water seeps inside them.

• The rocks are hollow, and water fills them like balloons.

• The rocks are melted, and water mixes thoroughly with them.

Answer explanation

The correct choice is that the rocks in an aquifer are porous and permeable, allowing water to seep inside them. This property enables them to store and transmit water effectively.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

The daily newspaper has a page entitled “Weather.” Which of these newspaper features actually describes climate?

• a map that shows today’s temperatures and precipitation across the country

• a forecast for the temperature and precipitation for the next three days

• a chart that lists average weather conditions for this time of year

• advice for managing a severe storm when it arrives

Answer explanation

The correct choice is a chart that lists average weather conditions for this time of year, as it reflects long-term patterns typical of climate, unlike the other options which focus on short-term weather.

Tags

NGSS.MS-ESS2-6

Waves have formed on the surface of a lake. A cork is floating in the lake. How do the motions of the cork and the waves compare? Select cork, wave, or both cork and wave for each description.

• Cork

• Wave

• Both cork and wave

• Neither

Answer explanation

Both the cork and the waves exhibit motion. The cork floats and moves up and down with the waves, while the waves propagate across the surface of the lake. Thus, both are in motion.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Moves across the lake.

• Cork

• Wave

• Both cork and wave

• Neither

Answer explanation

Waves move across the lake due to wind and other forces, while cork floats but does not create movement across the water. Therefore, the correct answer is 'Wave'.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Moves faster when the wind blows stronger.

• Cork

• Wave

• Both cork and wave

• Neither

Answer explanation

Waves move faster with stronger winds, as wind energy increases wave height and speed. Cork, however, does not move faster in wind; it floats but is not propelled by it. Therefore, the correct answer is 'Wave'.

Tags

NGSS.MS-PS2-2

Look at the list of energy sources: Wood, Coal, Oil, Natural gas, Petroleum, Wind. Which of the resources listed in the table is nonrenewable and what is a disadvantage for using this resource?

• Wind; It is not always available.

• Wood; It can lead to deforestation.

• Coal; It causes pollution.

• Natural gas; It is expensive.

Answer explanation

Coal is a nonrenewable resource, and its use leads to significant pollution, impacting air quality and contributing to climate change.

The process that breaks down rocks and other materials on Earth's surface is called

• Weathering

• Erosion

• Deposition

• Decomposition

Answer explanation

The process that breaks down rocks and materials on Earth's surface is called weathering. It involves physical and chemical processes that alter the structure and composition of rocks.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Plant root grow in a rock and cause it to split.

• Weathering

• Erosion

• Deposition

Answer explanation

Plant roots can penetrate rocks, exerting pressure that leads to cracks and splits. This process is known as weathering, which breaks down rocks into smaller pieces without moving them, distinguishing it from erosion and deposition.

Tags

NGSS.MS-ESS2-2

What is the primary reason for the formation of waves on the surface of a lake?

• Fish swimming underneath

• Temperature changes

• Wind blowing across the surface

• Sunlight reflecting off the water