earth science test 1 Flashcards
(27 cards)
observation
description using your senses
length
meter
inference
conclusion based upon observation
volume
liter or cm cubed solid
mass
gram
1000x
kilo
100x
hecto
10x
deka
0.1 or 1/10
deci
0.01 or 1/100
centi
0.001 or 1/1000
milli
percent error
a measurment of how wrong an answer is
lower percent error is better
percent error formula
difference/ actual value x 100%
earth –> moon
239000 miles
earth –> sun
93,000,000 miles
coldest temperature
0.0000002 degrees celsius
scientific notation
a system for writing large or small numbers accuratley
ex- 5.478x 10 to the 4th
why do we measure mass not weight
weight is a measure of the pull of gravity on an object weight will weigh different when gravity is different. mass is a measure of the amount of matter in an object. mass is the same anywhere
temperature
NOT HOW HOT OR COLD SOMETHING IS
a measurment of the average kinetic energy (speed) of molecules
slowly moving molecules
cold
fastly moving molecules
hot
water freezes
32f–>0c–>273k
volume
amount of space an object occupies
solid
centimeters cubes