Chemistry 1
the act of conducting a controlled test or investigation
What is an experiment?
noting or recording a fact
What is an observation?
When Matter changes directly from a solid to a gas
What is sublimation?
the study of the structure, properties, and composition of substances and the changes they undergo
What is chemistry?
Element with atomic #2?
What is Helium?
Anything that takes up space and has mass
What is matter?
Has a defined shape and volume
What is a solid?
Matter without definite shape or volume
What is a gas?
the temperature scale of which the freezing point of water is 0 degrees and the boiling point is 100 degrees.
What is Celsius?
when one substance is dissolved in another
What is a solution?
the temperature when a liquid begins to boil and becomes a gas or vapor
What is the boiling point?
To turn into gas, like water into water vapor
What is evaporation?
Capable of being dissolved
What is soluable?
To make a substance less concentrated, usually by adding more liquid
What is What does it mean to dilute?
A substance combining two or more materials with different properties
What is a mixture?
A solution is which as much solute as possible has been dissolved
What is saturation?
a method of investigation involving observation and theory to test scientific hypotheses
What is Scientific Method?
The temperature of a solid when its crystal lattice disintegrates
What is the melting point?
Something made artificially or by a laboratory chemical process, rather than by a natural process
What is synthetic?