Lesson 1
This is the circle of volcanoes around the edge of the Pacific Ocean.
What is the Ring of Fire
What is lava?
This is what happens when water freezes and expands in cracks. When this happens, a big rock can split into smaller rocks
What is ice wedging?
What are sedimentary rock layers?
Rain, loose rocks, and a steep slope can cause this.
What are landslides?
The Ring of Fire includes these types of volcanoes
What are active volcanoes?
This is the type of rock lava cools into.
What is basalt?
This is a process that occurs when plants widen the crack of a rock.
What is root wedging?
This is what fossils teach scientists.
Fossils found in rock layers help scientists learn about an area’s history.
Landslides occur when?
loose rocks and soil slide down slopes due to heavy rainfall, earthquakes, or unstable terrain.
This is why cone volcanoes explode.
What is trapped gases?
This is a natural process that breaks down rocks into smaller pieces.
What is freezing and thawing water?
This is what fossils of aquatic animals found in deserts tell us
That the area was once underwater.
Landslides can be prevented by...?
Planting vegetation to stabilize the soil, constructing retaining walls, and avoiding construction on steep slopes.
This is the type of lava that shield volcanoes have.
What is thin and runny?
This is what causes mountains to change over time.
What is weathering and erosion?
This is how fossils help scientists understand Earth's history.
Fossils reveal what plants and animals lived in a region and provide evidence of past environments, such as oceans, swamps, or deserts. This helps scientists reconstruct Earth's geological and biological history.