Scientific Method/ Investigation
Study of reasoning.
Logic
Another name for earthquake vibrations.
Seismic Waves
Submarine eruptions are __ more likely than eruptions on land.
20x
This metal is used for radiation shielding and automotive batteries.
Lead
What percent of the salt in the ocean is sodium chloride?
78%
How much organic material is found in most soil?
4-5%
In this group the independent variable is absent.
Control Group
These waves can move through both liquid and solid materials.
P (Primary) Waves
What percent of the earths volcanoes happen in/near the Ring of Fire?
75%
All silicates contain silicon and ____.
Oxygen
On average, the salinity of seawater is __.
3.5%
This soil particle feels like flour.
Silt
A conclusion based on reasoning from evidence.
Inference
Place where an earthquake begins.
Focus / Hypocenter
What do we call a gently sloping volcano?
Shield Volcano
The hardest naturally occurring substance.
Diamond
What two things determine the density of seawater.
Salinity & Temperature
What is the smallest soil particle?
Clay
Reasoning from evidence to a more specific conclusion.
Deductive Reasoning
What scientists use to time and detect seismic waves.
Seismograph
A volcano that has never erupted and isn’t expected to erupt again.
Extinct Volcano
The smallest group of minerals are known as ___.
Native Elements
Due to salinity, the freezing point of seawater is ___.
28.8
Contains a range of sand, silt, clay, and humus mixture.
Loam
Factor observed to determine the results of an experiment.
Dependent Variable
These waves move along the ground in a rolling motion; similar to ocean waves.
Rayleigh Waves
A central feature through which gases, ash, and rock are ejected.
Softest mineral on the MOHs scale.
Talc
Floating glacial ice.
Iceberg
Chart used to provide names and descriptions of soil.
Munsell Chart