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Fall review

QuestionAnswer
Which metric unit is used for mass? grams
Which metric unit is used for length? meters
Which metric unit is used for volume? liters
What numbers are in the pH scale? 0 - 14
Which pH values are used for acids? 0 - 7
Which pH values are used for bases? 7 - 14
Which pH values are used for neutral substances? 7
How can you tell that a physical change has occurred? the material is the same
How can you tell that a chemical change has occurred? a new substance or material is made
What are reactants? the substances or materials used to start a chemical reaction
What are products? the substance or materials that are made in a chemical reaction
What is an independent variable? the part that the scientist changes
What is a dependent variable? the data or information collected in the experiment
What does the term homogeneous mean? the same all over
What does the term heterogeneous mean? different materials mixed together
Define solute. the substance added to a liquid
Define solvent. the liquid that other substances are added to
Define malleable. can be hammered flat or into sheets
Define ductile. can be stretched into wire
Define conductive. allows electricity to flow through
Created by: lb goodlock