Fast Changes on Earth
This natural event can change Earth’s surface quickly:
Natural disaster (earthquake, tornado, tsunami, wildfire, hurricane, flood)
This is the layer of Earth we live on:
crust
This helps plants grow and gives homes to animals:
soil
These are remains of plants or animals from long ago:
Fossils
Wind and water can move soil and rocks.
true
A slowly changing process that wears down mountains and moves soil:
erosion
This hot layer lies right below the crust and causes movement:
mantle
We depend on this for growing food:
soil
This person studies fossils:
Palaeontologist
The mantle is a cool outer layer of Earth.
False
This frozen natural force moves slowly but reshapes the land:
Galciers
This layer is made of solid metal at Earth’s center:
inner core
Deforestation is ________ to animals because it takes away their ________
harmful, habitats
This is made of packed snow and ice that moves slowly:
Glacier
Glaciers are made of fast-moving lava.
False
These two forces can change Earth’s surface by moving rocks and soil:
wind and water
This layer is liquid and extremely hot:
Why is soil important to both plants and animals?
It provides nutrients and homes
The rock layers can show us what:
How old a fossil is, what the climate was, what species existed at different time periods
Topsoil has the most amount of nutrients for plant growth
true
One way animals help change the land is by doing what? (think of the worms)
digging and moving soil, decaying animals
Which layer helps drive movements like earthquakes and volcanoes?
The mantle
What is one way plants and animals can change the Earth’s surface?
They dig (burrow), grow roots, decay, and move soil.
How do we know that dinosaurs once roamed Alberta?
Fossil evidence
How do humans change earth's surface, both positively and negatively.
Ms. Bennett will decide