Science Study Guide [Unit 1]

the natural form of some solid substance. its shape is a physical property that helps identify a substance.

• crystal

• atom

• matter

to keep the same amount of matter even if the matter changes

• condensation

• conserve

• transfer

the ability to make things happen

• energy

• matter

• conserve

the chemical name for salt

• sodium carbonate

• silicon chloride

• sodium chloride
• silicon carbonate

measure of how hot or cold matter is

• Celsius

• thermometer
• climate
• temperature

the change of state from liquid to solid as a result of cooling

• freezing
• condensation
• solidification
• vaporization

to pass from one place to another; heat does this to make solids melt

• freeze

• evaporate

• condense

• transfer

liquid water that is condense from water vapor in the atmosphere and falls to Earth in drops

• sleet
• rain
• hail
• snow

water in its gas state

• steam
• ice
• water vapor
• liquid water

colorless, odorless gas that makes up about 78% of Earth's atmosphere

• carbon dioxide
• helium
• nitrogen
• oxygen