Rock Dating
Energy
Earth History
Chemistry 1
Chemistry 2
100
This law states that older rocks are found in the bottom layer, and younger rocks are found at the top.
The Law of Superposition
100
Name four nonrenewable resources
coal, oil, natural gas, nuclear
100
a random change in a gene
mutation
100
The Law of Conservation of Mass states that matter can neither be ___________ nor ____________.
Created, Destroyed
100
Groups on the periodic table all have the same number of __________ electrons.
valence
200
Order from oldest to youngest
N, A, T, G, J, S
200
Two disadvantages to wind energy
Disrupts bird migration, not consistently reliable
200
Structures that come from a common ancestor
homologous structures
200
This forms when two liquids chemically react to form a solid
Precipitate
200
The number of neutrons in sodium
12
300
Name two types of index fossils
trilobite, ammonite
300
Why are rocks, minerals, and natural gas considered nonrenewable?
They take millions of years to form and cannot be replenished as needed
300
This theory states that organisms with favorable traits are more likely to survive and pass on those traits
Natural Selection
300
Water measures ____ on the pH scale. And is ______
7
Neutral
300
True or False: This equation is balanced. Explain.
True - There is 1 Carbon, 4 Hydrogen, and 4 Oxygen atoms on both sides.
400
What types of rocks are fossils most commonly found in?
sedimentary rock
400
The name for solar panels
photovoltaic cells
400
This person proposed the Theory of Continental Drift, stating that all continents were once part of a giant landmass
Alfred Wegener
400
What are the 3 parts of an atom and what type of charge do they carry?
Neutron (0)
Proton (+)
Electron (-)
400
Write the formula for two water molecules
2H2O
500
The youngest layer of the two outcrops.
Layer H
500
Name a cause AND an effect of global warming
Cause: increased CO2 emissions, deforestation, burning fossil fuels;
Effect: Climate change, rising sea levels, melting glaciers, extreme weather
500
Wisdom teeth and tailbones are examples of ____________ structures.
vestigial structures
500
What is litmus paper used for?
To indicate the acidity of a substance based on color change
500
How would you know a chemical reaction occurs? Give an example of a chemical reaction
A new substance was created - Paper burning, Metal rusting