The process that breaks down rock and other substances at Earth's surface.
What is weathering?
100
The three main layers of Earth.
What is the crust, the mantle and the core?
100
What type of movement causes day and night to occur?
What is rotation?
200
Results from a force pressing on an area.
What is pressure?
200
What are the properties of matter?
What is shape, mass and volume?
200
The type of weathering in which rocks are physically broken into smaller pieces.
What is mechanical weathering?
200
The supercontinent that the scientist Wegener hypothesized about.
What is Pangaea?
200
Eclipses occur when one object casts a shadow on another. What are the two types of eclipses?
What is sonar and lunar eclipses?
300
The flow that transfers heat within a fluid.
What is convection current?
300
___________ is how much matter, or mass, there is in a given amount of space, or volume.
What is density?
300
Iron combines with oxygen in the presence of water.
What is oxidation?
300
A device that bounces sound waves off underwater objects and then records the echoes of these sound waves.
What is sonar?
300
The different shapes of the moon you see from Earth.
What is phases of the moon?
400
States that every object in the universe attracts every other object.
What is law of universal gravitation?
400
The kind of energy that can be transferred from one object to another, always from the cooler object to the warmer ones.
What is thermal energy?
400
The solid layer of rock beneath the soil.
What is bedrock?
400
The process by which ocean floor sinks beneath a deep-ocean trench and back into the mantle.
What is subduction?
400
The combined forces produce a tide with greatest difference between consecutive low and high tides.
What is spring tide?
500
A symbiotic relationship that benefit both species.
What is mutualism?
500
What happens to atoms during changes in state of matter?
The atoms either move faster causing solid to become liquids and liquids into gases, or slow down, causing gases to become liquids and liquids to solid.
500
Soil can be conserved through__________,___________ and ___________.
What is contour plowing, conservation plowing and crop rotation?
500
There are three kinds of plate boundaries. Name them.
What is divergent boundary, convergent boundary and transform boundary?
500
The solar system is composed of......?
What is 1) eight planets (and their moons), 2) asteroids,meteors and comets 3) dwarf planets 4) the sun?