7th grade Final review

What is the smallest unit of matter?

• Molecule

• Atom

• Electron

• Neutron

What charge does an electron have?

• Positive

• Negative

• Neutral

• No charge

Which of the following is a renewable resource?

• Coal

• Natural Gas

• Wind

• Oil

What is the difference between weather and climate?

• Climate is short-term, weather is long-term

• Weather is the daily condition; climate is the average over time

• They are the same

• Climate refers to only temperature

Which gas was rare in Earth’s early atmosphere?

• Carbon dioxide

• Methane

• Water vapor

• Oxygen

What term describes the amount of water vapor in the air?

• Visibility

• Humidity

• Precipitation

• Wind

Which of these best describes the atmosphere?

• A water cycle layer

• The solid part of Earth

• The layer of gases surrounding Earth

• A magnetic field

What is the main gas in Earth’s current atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

What process moves water through the water cycle?

• Photosynthesis

• Gravity

• Evaporation, condensation, and precipitation

• Respiration

Which of these is a nonrenewable resource?

• Water

• Solar

• Coal

• Wind