Methods of Science
The factor that is changed by the investigator to observe how it affects a dependent variable.
The line of longitude 180 degrees east or west of the prime meridian.
International Date Line
What percentage of water covers Earth's surface?
the dense metallic center of Earth
core
a rare and attractive mineral that can be worn as jewelry
gemstone
Name the 3 branches of science
1. Earth Science
2. Life Science
3. Physical Science
How many time zones exist around the world?
24
List the 5 oceans.
Atlantic, Pacific, Southern, Indian, Arctic
What are the layers of the Earth?
crust, mantle, outer core, inner core
Which group of minerals is composed of mainly silicon and oxygen?
Silicates
This is the study of Earth, including rocks, soil, oceans, and the atmosphere.
Earth Science
How many degrees does the Earth rotate per hour?
15 degrees
List the 7 continents
North America, South America, Asia, Europe, Africa, Australia, Antarctica
The outer core is _________ (state of matter)and the inner core is __________ (state of matter).
liquid, solid
Which is the hardest mineral on the Mohs hardness scale?
Daimond
A rule that describes a pattern of law.
Scientific Law
What are the 4 Times Zones in the US?
Eastern time zone
Pacific time zone
Central time zone
Mountain time zone
Asia
True or False: Some mountains form from the buildup of lava on the ocean floor.
True
What are the 5 characteristics that define a mineral?
naturally occurring, inorganic, definite chemical composition, solid, crystallized structure
Put the steps in order to the Scientific Method
1. Ask a question
2. form a hypothesis
3. Perform the experiment
4. analyze your observations
5. conclusion statement
What are the units and symbols for the following Quantities being measured? length, time, mass
meter-m
second-s
kilogram-kg
Name the Earth's 5 systems
Atmosphere, Geosphere, Biosphere, Cryosphere, Hydrosphere
What are the 4 layers of the mantle?
Uppermost Mantle, Asthenosphere, Upper mantle, Lowermantle
How many minerals are commonly found?
30