A
A hypothesis is
Educated guess
List all Alkalia Metals
Lithium,sodium,potassium,Rubidium,cesium,francium
How many variables can be tested at once?
One variable
What is mass
The amount of matter (atoms) in a object
What is the Scientific Method?
Series of steps followed to solve problems
What is the difference between hypothesis and a guess?
Hypothesis must be testable. Guess does not have to be of prior knowledge.
Moving energy
which color has the longest wavelength
Red
which last long renewable or non renewable
Renewable
What is the difference between a fact and an opinion?
Fact - based on research. Opinion - own belief
what is physical change
A change that does not produce a new substance
what is potential energy
Stored energy
what is heat
Is energy from the motion of particles it goes from hot to cold
what is a conductor
allow heat to pass (metal)
what waves are in sound
longitudinal waves
What happens after a hypothesis is tested?
analyze data
what waves are in light
Electromagnetic waves
What is the final step of the Scientific method?
conclusion and communicating results
what color has the shortest wave length
Violet
What is control?
The part that does not change
what do you use to find the volume of an irregular object
water displacement
what is Density
How tightly molecules in an object are packed together
what is Buoyancy
The ability of an object to float
What is a variable?
a factor that changes or is controlled
Explain the difference between dependent and independent?
Dependent - stays constant. Independent - moves around, does not stay in one place.