Chemistry
Give an example of a physical change
Answers include but are not limited to: Tearing, melting, freezing, crumpling
What is turbidity
Quality of being cloudy or opaque
Name the 3 types of natural boundaries
Convergent, divergent, transform
Explain the purpose of food
To provide fuel and nutrients for organisms
Biotic is living and abiotic is nonliving
Biotic: Plants and Animals
Abiotic: Rocks, Water
Which group does not bond with other elements because it has a full shell of valence electrons
Group 18, Noble gasses
An area of land that drains to one place
Watershed
In which era did most of human history occur
Cenozoic
Explain the difference between a pandemic and an epidemic
Pandemic is widespread, epidemic is localized
What could the result of a consumer in a food web only having one source of food
If that food source becomes less or extinct that could negatively impact the species that feeds on it as it will have fewer or no alternatives
Give an example of a homogenous mixture and a heterogenous mixture
Answers may vary but homogenous is the same throughout (Milk) and heterogenous has distinct parts (salad)
Why are aquifers important to humans?
Provides a source of groundwater for use by homes and businesses
Which type of rocks are fossils found in?
Why?
Sedimentary
Better at preserving organic matter due to the heat not destroying the fossils
What do viruses need in order to reproduce?
A host
Give two examples of a limiting factor
Sunlight, water, nutrients, space
What are the two parts of a chemical equation and What must be true of these parts?
Why?
Reactants, products. They must be balanced. Because of the law of conservation of mass
Describe the difference between point source and non point source pollution. Give an example of each.
Point Source Pollution can be identified easily and non point source pollution can not.
Point Source: Someone littering
NonPoint: Runoff from fertilizer from multiple farms
What does the law of superposition state
Explain 2 pros and 2 cons (based on science and evidence) of GMOs in North Carolina
Answers may vary
Give an example of an adaptation and how it could be both advantageous and disadvantageous in different habitats
Example: White fur coat in winter but if it doesn't snow the white fur coat makes it stand out and more vulnerable to predators
Which 4 pieces of information is found in each square of the periodic table? Must name all the parts to gain the points
1. Atomic Name
2. Atomic Symbol
3. Atomic Mass
4. Atomic Number (Number of protons)
What causes algal bloom in a water system?
What can be a result of algal bloom?
An over abundance of nitrogen
Organisms don't get enough sunlight, and then photosynthesis can't take place and they die due to lack of oxygen
What is the difference between relative and radioactive dating?
Relative dating is based on other fossils and rocks, radioactive dating uses isotopes
Explain 2 ways to prevent the spread of disease
Answers may include: Isolation, vaccination, hand washing, etc.
In the video that we watched, give 3 examples of how the reintroduction of wolves changed the ecosystem
Trees grew taller, fewer deer, more biodiversity, rivers moved due to the plants along the side of it and the dams created by the beavers.