Physical Science Review

Which is the best example of a chemical change?

• Butter melting

• Egg cooking

• Paper tearing

• Water evaporating

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

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

Chlorine has 7 valence electrons. With what group of elements will chlorine most readily bond?

• Group 1

• Group 16

• Group 2

• Group 18

Oxygen has 6 valence electrons. With what group of elements would oxygen most readily bond with?

• Group 1

• Group 2

• Group 7

• Group 8

Which pure substance is composed of more than one element?

• Carbon

• Water

• Gold

• Sodium

Tags

NGSS.MS-PS1-1

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

• H + O —> H₂O

• H₂ + O₂ —> H₂O

• 2H₂ + O₂ —> 2H₂O

• H₂ + O₂ —> 2H₂O

Tags

NGSS.MS-PS1-5

Which is most likely a major concern associated with burning fossil fuels?

• Burning fossil fuels can pollute the oceans

• Burning fossil fuels can remove harmful chemicals from precipitation.

• Burning fossil fuels can remove carbon dioxide from the atmosphere.

• Burning fossil fuels can produce smog, which can cause respiratory illness.

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-3

What characteristic of aluminum allows it to be made into aluminum foil?

• It is dense

• It is magnetic

• It is malleable

• It is soluble

When a metal can be shaped by hammering or pressure, it is

• malleable

• soluble

• dense

• magnetic