16 Items: the energy an object has because of moving • transfer of energy by electromagnetic waves • the energy required to change a solid to a liquid • the temperature at which a solid changes to a liquid • a material through which thermal energy moves slowly • increase in the volume of a substance when the temperature is increased • ...

16 Items: Pollutants that are released into the air.________________________ • Contamination of Earth's land, water, or air.________________________ • A specific source of pollution that can be identified.________________________ • The removal of forests to use the land for other reasons.________________________ • ...

28 Items: The smallest unit of life • The smallest unit of matter • The building block of proteins • A building block of DNA and RNA • Two or more atoms joined together • A group of cells that work together. • A package of DNA found in the nucleus • A copy of DNA that helps make proteins • The part of the cell that makes proteins • A substance made of two or more elements • ...

13 Items: A fluid's resistance to flowing. • Amount of force exerted per unit area. • Temperature at which a solid begins to liquefy. • Increase in the volume of a substance when the temperature is increased. • The process of a solid changing directly to a vapor without forming a liquid. • The amount of energy required for a liquid at its boiling point to become a gas. • ...

23 Items: a change downward • a process of becoming larger • The process of becoming a vapor. • The amount of space something takes up. • Anything that has mass and takes up space • Susceptible of being dissolved in a liquid • The process where water vapor becomes liquid. • A combination of two or more different substances. • ...

26 Items: Discovered the electrons • All metal ions are _________ • Which element is in group 3, Period 3? • Which group does not readily form ions? • The charge of an oxygen ion is _________ 2 • The subatomic particle with a negative charge • Which element forms a -3 ion and has 2 shells • The periods on the periodic table are the _______ • ...

29 Items: Xylem or phloem • Negatively charged ion • Positively charged ion • low enough for ice to float • Allows water to form its bonds • Polar and ionic molecules; asymmetrical • Reaction where water molecule is released • Bonds where two non metals share an electron • Non-polar and non-ionic molecules; symmetrical • water sticks to itself; the same as surface tension • ...

29 Items: Group 1 Metals • reactions with oxygen • All frozen water on the Earth • Sum of all water found on Earth • Substances containing non-metals • Substances only containing metals • layer of the planet where life exists • the substances produced in a reaction • The horizontal row of the Periodic Table • measure of the amount of water in the air • ...

31 Items: to form a crystal structure • Pollutants released into the air • Trapping of heat near planet's surface • Gradual increase in average temperature • The average annual conditions of an area • Change Sudden or gradual change in climate • Rate Number of people born per 1000 individuals • Rate Number of people who die per 1000 individuals • ...

37 Items: the outermost layer of our atmosphere • the lowest layer of Earth's atmosphere • an instrument that measures temperature • measures the distance north or south of the equator • winds that occur in belts that go all around the planet • an instrument that measures wind speed and wind pressure. • heat-driven cycles that occur in the air, ocean, and mantle • ...