Earth rotates on its axis, causing this daily pattern.
What is day and night?
This layer of Earth is broken into large moving plates.
What is the crust?
Cooling magma forms this type of rock.
What is igneous rock?
Living parts of an ecosystem are called this.
What are biotic factors?
Plants are called this in a food web.
What are producers?
The Moon appears to change shape because of these.
What are moon phases?
Earth’s hottest layer is the ______.
What is the inner core?
Layers of compacted sediment form this rock type.
What is sedimentary rock?
Water, sunlight, and temperature are examples of these ecosystem factors.
What are abiotic factors?
Animals that eat only plants are called this.
What are herbivores?
Summer happens when this hemisphere tilts toward the Sun.
What is the hemisphere experiencing summer?
When tectonic plates suddenly move, this natural event happens.
What is an earthquake?
Heat and pressure change rocks into this type.
What is metamorphic rock?
When food becomes scarce, populations usually do this.
What is compete?
An organism that breaks down dead matter is called this.
What is a decomposer?
Ocean tides are mainly caused by the gravitational pull of these two objects.
What are the Moon and the Sun?
This layer is made of hot rock that slowly flows beneath Earth’s crust.
What is the mantle?
Weathering and erosion break rocks into smaller pieces called this.
What is sediment?
When food becomes limited in an ecosystem, populations usually respond in this way.
What is will stop growing and may decrease?
If the mouse population suddenly disappears, what will MOST likely happen to snake populations?
What is decrease?
If Earth had NO tilt, this seasonal pattern would mostly disappear.
What are seasons?
Why do scientists believe Earth’s outer core is liquid?
What is because seismic waves move differently through it?
Magma that cools below Earth’s surface forms this type of rock.
What is intrusive igneous rock?
An ecosystem is considered a system because of this reason.
What is living and nonliving things interact and affect one another?
If snakes (predators) disappear from a food web, this population may increase because fewer predators are hunting them.
What are prey populations?