Rock Layers & Fossils
What is a fossil?
remains or traces
Weathering breaks rocks. Erosion moves rock pieces. True or false?
true
What part of a map tells what symbols mean?
legend
What is a natural resource?
from nature
What does it mean to “reduce impacts”?
lessen harm
If a fossil is in a deeper rock layer, is it usually older or younger than one above it?
older
Ice freezes in cracks and makes a rock split. Weathering or erosion?
weathering
If contour lines are close together, is the land steep or gentle?
steep
Name one renewable energy resource.
sunlight
Give one solution that can reduce flood damage.
levee
Shell fossils on a hill far from the ocean suggest the area was what long ago?
underwater
A river carries sand downstream. Weathering or erosion?
erosion
Rivers usually flow from high to what?
low land
Name one fossil fuel.
coal
Why compare more than one solution?
trade-offs
Name one rock-layer pattern that shows land changed over time.
tilted layers
What does “rate of erosion” mean?
erosion
What does a map scale show?
distance
One way fuels can affect the environment is by causing what?
pollution
Better for earthquakes: stronger buildings or hoping?
stronger buildings
Plant fossils on top and fish fossils below suggests the land changed from water to what?
land
Which erodes faster: bare steep slope or grassy gentle slope?
bare steep slope
Many mountains in a long line are called a what?
mountain range
Give one use of an energy source (any correct example).
electricity
Name one solution to reduce erosion on a hillside near homes.
plant grass