Most of the heat from Earth's interior reaches the surface by:
What is convection?
100
Continuous movement of water between the atmosphere, the land, and the oceans.
What is the water cycle?
100
The solid, plastic, physical layer upon which tectonic plates move.
What is the asthenosphere?
100
What are the two nutrients that plants get from soil?
What are phosphorus and nitrogen?
100
The total kinetic energy of the particles that make up a substance.
What is thermal energy?
200
The main source of energy that reaches Earth's surface is the:
What is the sun?
200
When water vapor is released into the air through pores on the leaves of plants.
What is transpiration?
200
The central part of Earth; compositional layer made of iron and nickel.
What is the core?
200
This is the cycle in which dead organisms form rock or fossil fuels over millions of years.
What is the carbon cycle?
200
The transfer of heat or energy that can occur between objects that are not touching.
What is radiation?
300
Any movement of matter caused by differences in density.
What is convection current?
300
The spheres of Earth through which energy and matter flow are called the geosphere, atmosphere, hydrosphere, and:
What is the biosphere?
300
Earth's outermost physical layer; divided into tectonic plates.
What is the lithosphere?
300
The cycle in which substances change into new substances due to erosion and weathering.
What is the Rock Cycle?
300
A measure of the average kinetic energy of particles in an object.
What is temperature?
400
The transfer of energy from one object to another through direct contact.
What is conduction?
400
When water droplets become large enough, they fall back to Earth as _______________, such as rain.
What is precipitation?
400
The solid, lower layer of Earth's mantle.
What is the mesosphere?
400
The process in which liquid water changes into gaseous water vapor.
What is evaporation?
400
The movement of matter due to differences in density; the process by which energy flows through the hydrosphere and atmosphere and reaches Earth's surface.