Layers of the Earth
Outer most layer
Crust
What causes convection currents to form?
differences in temp
What causes earthquakes?
Tectonic plate movement
What is the smallest unit of life?
Cell
Two types of crust
Oceanic and continental
How do convection currents in the mantle affect Earth’s crust?
Move tectonic plates
What is the main source of energy that drives the water cycle?
The sun
What gas do humans need to breathe in to survive?
Oxygen
What are the 3 main layers of the Earth in order from outside to inside
crust, mantle and core
In which layers of the Earth do convection currents occur?
Mantle
What type of rock is formed when molten rock cools and solidifies?
Igneous rocks
What is the chemical symbol for water?
H2O
What process occurs in the mantle
convection currents
lava lamp, boiling water, etc
What gas do plants absorb from the atmosphere during photosynthesis?
Carbon dioxide
What force keeps us on the ground and stops us from floating into space?
Gravity
What state is the core?
Solid
what state is the mantle?
semi solid
What is the name of the supercontinent that existed about 200 million years ago?
Pangaea
What part of the plant makes food using sunlight?
Photosynthesis