4th Grade - Section 1
The animal _____ had been preserved for 2,000 years.
fossil
In geology, this is a large fragment of Earth’s crust and upper mantle. It is also the word for something that you eat with.
plate
_____ is water that has been used by other people.
Wastewater
You have this when there is a want or need. This is something that can be solved.
4th Grade: This is the movement of sediment from one location to another.
erosion
The lava erupted from the _____, it was such a disaster!
volcano
A _____ is a form of mass movement in which a large section of a slope slides downhill all at once.
landslide
This is an energy resource that does not release pollutants when it is used.
clean energy
Fresh water found in rivers, streams, and lakes on Earth’s surface is called:
surface water
4th Grade: Name the three types of rocks that you learned in this unit.
1. sedimentary rock
2. igneous rock
3. metamorphic rock
A _____ is a wave or series of waves caused by displaced water.
tsunami
A _____ is a hole in Earth’s surface that develops when the ground collapses into space beneath it.
sinkhole
Water stored in the spaces between materials beneath Earth’s surface is called:
True or False: A pollutant is an artificial or natural substance that contaminates air, water, or soil.
True
5th Grade: This type of farming is the practice of harvesting only the part of the plant needed for food and leaving the rest in the soil.
non-till farming
The ground started to shake because of the seismic wave, there was a serious _____ about to start. People started to panic and hide for cover!
earthquake
_____ is molten material from the Earth's mantle below the Earth's surface, while _____ is molten material from Earth's surface after it reaches the surface.
1. Magma
2. lava
True or False: Contaminated land means land that contains chemicals that are harmful to the environment.
True
This is a facility that cleans wastewater before it is discharged into the environment.
water treatment plant
5th Grade: This is a relationship in a system through which factors affect each other.
Interaction
A _____ is a scientist who studies what Earth is made of and how it changes over time.
geologist
The _____ of the earthquake was very large. It caused a lot of damage.
magnitude
_____ is the word for a variety of species on Earth or in any one environment on Earth.
Biodiversity
This is the process of cleaning infection from a material. When you do this, the infection is removed.
Disinfection
5th Grade: When something is ________ it is a material that decays through the action of bacteria or other living organisms. A banana peel or an egg shell is an example of this material.
biodegradable