test 1 Flashcards
systemitized language
science
study of matter
chemistry
atoms molecules or ions
particles
anthing that has mass and occupies space
NOT LIGHT
matter
all compounds are _____
chemicals
scientific method
O H E S S
observation, hypothesis, experiment, scientific law, scientific theory
scientific observation should be _______
reproducible (explain why)
A tentative explanation of observation
Can be tested by experiments
hypothesis
Highly controlled observation
experiment
a concise statement that summarizes past observations and predicts future ones
sceintific law
Well established hypothesis
It provides a broader & deeper explanation for observation and laws
scientific theory
how close the measurement is to the true value
accuracy
How well a number independent measurements agree with one another
precision
error formula
Error = |true value - measured value|
SI unit of area
m^2
SI unit of length
m
SI unit of volume
m^3
SI unit of desnity
Kg / m^3
SI unit of speed
m/s
formula for speed
distance/time
si unit of acceleration
m/s^2
SI unit of force
N
SI unit of pressure
Pascal
SI unit of energy
Joules
Mr Cubed
1 L = 1000cm^3 = 1000mL
smallest fundamental particle of an element that has the properties of that element
atom
First atomic theory
dalton’s atomic theory
