24-25 Nine Weeks 1

A team of researchers is exploring and mapping the area of the seafloor near the Mid-Atlantic Ridge. Which statement BEST describes a pattern the researchers might observe in the age of the rocks that make up the seafloor?

• The newest rock layers form alongside the ridge.

• The newest rock layers form slowly beneath the continents.

• The oldest rock layers are continuously recycled at the ridge.

• The oldest rock layers are closer to the ridge than to the continents.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

An excavation revealed layers of sedimentary rock with fossils in each layer. Select the number of the layer where the newest fossils are located.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

The map shows Earth’s major tectonic plates and their directions of motion. Four locations are identified on the map. What boundary is at location #1 and what is a cause of the boundry? Select the letter of TWO correct answer in each box.

• divergent

• transform

• convergent

• mountain building

• earthquakes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

This question has two parts. First, answer Part A. Then answer Part B. The Hawaiian Islands are made up of eight islands in the North Pacific Ocean. They are a popular tourist destination due to the warm climate and plentiful beaches. Part A: Which location is typical of the appearance of super volcanoes?

• at hotspots

• along mid-ocean ridges

• where plates slide past each other

• where plates push toward each other

Tags

NGSS.MS-ESS2-2

Part B: How does the answer to Part A explain the formation of the Hawaiian Islands?

• Plates slide away from each other, allowing magma to rise up into the crust.

• Plates slide toward each other, pushing up on one another, and resulting in the various islands.

• Magma erupts at various points as plates slide by each other, resulting in the various islands.

• Magma in the mantle rises into the crust, forming a hotspot, and breaks through the crust, forming a volcano.

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Human overpopulation is degrading Earth’s surface and groundwater resources. Which statement BEST describes a way to reduce the negative effects of overpopulation on these resources?

• More wetlands could be repurposed for houses.

• Oil production companies could increase output.

• Governments could reduce regulations that limit groundwater use.

• Homeowners and companies could replace leaky or inefficient equipment.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Which statement explains a human activity that DIRECTLY impacts the stability of ocean systems?

• People use ocean currents to navigate their sailboats.

• Ocean pollution causes sea turtle populations to decrease.

• Burning gasoline in cars leads to increases in water temperature.

• Educational programs teach about how humans depend on the ocean.

In science class, students learn about dead zones in the ocean. These are areas that form when excess organic matter enters the ocean and decomposes. This increased decomposition uses up the oxygen dissolved in water. The teacher asks the class to construct an argument that explains which human activity is most affected by the increasing number of dead zones in the ocean and why. Which explanation BEST describes the human activity most affected by this?

• Offshore oil drilling is affected because water in dead zones is toxic.

• Commercial fishing is affected because fish cannot survive without oxygen.

• Commercial shipping is affected because dead zones change the course of ocean currents.

• Sand mining is affected because oxygen is not available to form the sands on ocean beaches.

Tags

NGSS.MS-LS2-4

Study the food web. Which statement BEST explains the available energy in this food web?

• The grass has the most available energy.

• The foxes, hawks, and snakes have the most available energy.

• The rabbits, mice, and grasshoppers have more available energy than the grass.

• The rabbits, mice, and grasshoppers have less available energy than the foxes, owls, frogs, and birds.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

An energy pyramid with four trophic levels is shown. The energy of the secondary consumers is given. What is the energy content of the tertiary consumers?

• 10% of secondary consumers

• 20% of secondary consumers

• 30% of secondary consumers

• 40% of secondary consumers

Tags

NGSS.MS-LS2-3