Scientific Methods
A prediction of the outcome of an experiment
What is a hypothesis?
State of matter with the least space between particles
What is solid?
Testing a chemical property does this to the substance being tested
What is changes it at a chemical level?
A device used to find the mass of an object
What is a digital scale or triple beam balance?
The atomic mass of cobalt (Co)
What is 58.693 amu?
Variable measured by the scientist; the "effect"
What is the dependent variable?
The starting and ending phases of melting
What is solid to liquid?
The ability of a substance to react with other substances
What is reactivity?
The volume of an object placed in a graduated cylinder of 45 mL that rises to 61 mL
What is 16 mL?
Family that is xenon (Xe) in
What are Noble gases?
Variable changed by the scientist; the "cause"
What is the independent variable?
When a phase changes from a gas to a liquid
What is condensation?
How easily a substance burns
What is flammability?
The density of an object with a mass of 120 g and a volume of 30 mL
What is 4 g/cc?
Group and period that sulfur (S) is in
What are 16 and 3?
A group that we use to compare the other experimental groups to
What is the control group?
State of matter with the most energy
What is plasma?
How shapeable a substance is
What is malleability?
Something an object does if it is less dense than the fluid it's in
What is float?
The number of valence electrons that strontium (Sr) has
What is two?
What are constants?
The kind of energy that changes the phase of a substance
What is heat or thermal energy?
Ability to turn a substance into a wire
What is ductility?
The density of an object with a volume of 15 cc and a mass of 90 g
What is 6 g/cc
Created when an atom gains or loses electrons
What is an ion?