Chapter 1

What is Earth Science?
the name for the group of sciences that deals with Earth and its neighbors in space.
Hypothesis
stating a possible explanation
educated guess
Theory
extensive tested hypothesis and widely accepted by the scientific community
can still be proven wrong
Law
99% true
Law of Gravity
What is step 1 of the scientific method?
Problem/Question
-what you want to know
What is step 2 of the scientific method?
Research
-learn about the topic
What is step 3 of the scientific method?
Hypothesis
-educated guess
What is step 4 of the scientific method?
Experiment
-test the hypothesis
What is step 5 of the scientific method?
Collect data, measurements, and observations
What is step 6 of the scientific method?
Analyze data
What is step 7 of the scientific method?
Draw conclusion
-accept, reject, or modify the hypothesis
______________ means how long something is.
length/distance
m, km, cm, mm
meter stick or ruler
____________means how much heat an object has.
temperature
oC, 0F, K
thermometer
________________is how much matter is in an object.
mass
g, kg, mg,
balances, triple beam balance, and electronic scale
______________is how much space an object takes up.
volume
L, mL, cm3, cc (mL)
graduated cylinders and rulers
Volume of a regular object (block)
L x W x H
How do you determine volume of liquids?
use graduated cylinders
How do you determine volume of irregular objects like a rock?
water displacement with a graduated cylinder
density
mass per unit volume
g/mL or g/cm3
D = m/v
What is the density of water?
1 g/mL