Science EOG Review

Which characteristic of water quality provides the most information regarding the health of a water system?

• clarity

• temperature

• concentration of heavy metals

• presence of indicator species

Which would indicate the water in a lake is not safe for drinking?

• many varieties of fish in the lake

• high dissolved-oxygen levels in the lake

• cold water temperature of the lake

• high turbidity levels in the lake

If a lake has excess levels of phosphates and nitrates in its water, what will most likely result?

• The temperature of the lake water will decrease.

• The turbidity levels of the lake will decrease.

• The dissolved-oxygen levels in the lake will increase.

• The growth of algae in the lake will increase.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which best describes a method of obtaining energy that may cause changes in water temperature and harm to fish populations?

• burning coal

• using ethanol in cars

• installing solar panels on a home

• generating electricity in a hydroelectric power plant

Tags

NGSS.MS-PS3-4

Which are most responsible for creating acid rain pollution?

• nuclear power plants

• coal-burning power plants

• hydroelectric power plants

• wood-burning power plants

The table shows the estimated energy production (in quadrillions of BTUs) from fossil fuels over a 20-year period. Which conclusion is best supported by the data?

• Dependency on oil has increased, therefore energy production from oil is increasing.

• Dependency on oil has increased, therefore energy production from natural gas is decreasing.

• Dependency on coal has increased, therefore energy production from coal is increasing.

• Dependency on coal has increased, therefore energy production from natural gas is decreasing.

Tags

NGSS.MS-ESS3-4

Which statement is true about a chemical reaction?

• The physical states of the atoms in the reactants determine the products.

• Some of the atoms in the reactants will be a part of the products.

• The number of atoms in the reactants determines the products.

• All of the atoms in the reactants will be a part of the products.

Tags

NGSS.MS-PS1-5

Which chemical equation best represents the Law of Conservation of Mass?

• H + O → H2O

• H2 + O2 → H2O

• 2H2 + O2 → 2H2O

• H2 + O2 → 2H2O2

Tags

NGSS.MS-PS1-5

Which is a compound?

• sodium

• sugar

• nitrogen

• air

Tags

NGSS.MS-PS1-1

Which is the primary source of energy for most cells in the body?

• sugar

• fat

• protein

• vitamin

Tags

NGSS.MS-LS1-7