This type of energy source is hard to replace and causes a lot of pollution. Examples are oil and coal.
What is a non renewable resource
100
This group of organisms can make their own food and are found at the bottom of a food chain.
What are producers
100
A worldwide outbreak of a disease
What is a pandemic
100
Pure substance made of one type of atom
What is an element
200
Suspended material in water, measured by clear or cloudy
What is turbidity
200
In undisturbed layers of sedimentary rock lowest layers contain older rocks.
What is the Principle of Superposition
200
A relationship in the ecosystem where both species benefit
What is mutalism
200
An injection used to reduce the spread of infectious diseases
What is a vaccination
200
A change where the atoms rearrange and a new substance is formed such as burning
What is a chemical change
300
This causes cold water and nutrients to go to the surface which attracts fish
What is upwelling
300
These energy sources cause less pollution. Examples are solar and hydroelectric
What are renewable energy sources
300
A way to show the flow of energy in an ecosystem with the most energy at the bottom and the least at the top.
What is a food chain (or food web)
300
Using living organisms to benefit agriculture, medicine and the environment
What is biotechnology
300
A column of the periodic table that contains elements with similar properties
What is a group (or family)
400
Land drained by a river and its tributaries
What is a river basin
400
This shows how common ancestors are related to existing species and is caused by genetic mutations
What is Evolution
400
Caused by limitations of food or space in an ecosystem and results in changes in population
What is competition
400
These cause diseases such as influenza and can mutate from year to year.
What is a virus
400
The number and type of atoms in the reactants is the same as the number and types of atoms in the products
What is the Law of Conservation of Matter (or Mass)
500
Important in protein production in plants but high levels can cause algae blooms that lead to fish kills.
What are nitrates
500
A type of fossil that was abundant, geologically widespread and on Earth for a relatively short amount of time. They can be used to find the age of other fossils.
What is an Index fossil
500
This nutrient repairs tissues in an organism
What is protein
500
Malaria is caused by this type of organism. (Hint- NOT a mosquito)
What is a parasite.
500
A physical change that is caused by an increase in temperature and increased movement of molecules in a substance.