Plate Tectonics 6th Grade Science FInal Review

Which hypothesis explains the movement of Earth's continents over geologic time?

• Plate Tectonics

• Continental Drift

• Seafloor Spreading

• Volcanic Activity

Answer explanation

The correct hypothesis that explains the movement of Earth's continents over geologic time is Continental Drift.

Tags

NGSS.MS-ESS2-3

What is the name of the ocean where the mid-ocean ridge is located?

• Pacific Ocean

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

Answer explanation

The mid-ocean ridge is located in the Atlantic Ocean, making it the correct choice among the given options.

What is formed closest to the mid-ocean ridge?

• Oldest rock

• Youngest rock

• Sedimentary rock

• Metamorphic rock

Answer explanation

The youngest rock is formed closest to the mid-ocean ridge due to the continuous process of seafloor spreading, where new rock is created at the ridge and gradually moves away from it.

What is the area called where the most active volcanoes exist?

• Pacific Plate

• Ring of Fire

• Mid-Atlantic Ridge

• San Andreas Fault

Answer explanation

The area where the most active volcanoes exist is known as the Ring of Fire, which is a region around the Pacific Ocean with high volcanic and seismic activity.

Which type of plate boundary is associated with the creation of new crust?

• Convergent

• Divergent

• Transform

• Subduction

Answer explanation

Divergent plate boundaries are associated with the creation of new crust through seafloor spreading where tectonic plates move apart.

What instrument is used to detect earthquakes?

• Barometer

• Seismograph

• Thermometer

• Anemometer

Answer explanation

The instrument used to detect earthquakes is a seismograph, which measures the vibrations of the ground caused by seismic waves.

What instrument is used to detect volcanoes?

• Seismograph

• Tiltmeters

• Barometer

• Hygrometer

Answer explanation

Tiltmeters are used to detect volcanoes by measuring changes in the tilt of the ground, indicating volcanic activity.

What causes a tsunami?

• Underwater earthquake

• Volcanic eruption

• Landslide

• Meteor impact

Answer explanation

A tsunami is primarily caused by an underwater earthquake, which displaces a large volume of water and generates powerful waves.

Tags

NGSS.MS-ESS3-2

Who proposed the theory of Pangaea, the "supercontinent"?

• Charles Darwin

• Alfred Wegener

• Isaac Newton

• Albert Einstein

Answer explanation

Alfred Wegener proposed the theory of Pangaea, the 'supercontinent', based on geological and paleontological evidence.

Which type of rock forms in horizontal layers?

• Igneous

• Metamorphic

• Sedimentary

• Volcanic

Answer explanation

Sedimentary rocks form in horizontal layers, making them the correct choice in this case.

Tags

NGSS.MS-ESS1-4