Science Trimester 1 Flashcards
Science means ___ in Latin
scire
Science is…
a way of learning about the natural world
scientists use skills such as:
observing (using their senses)
inferring (believe something is true)
predicting
Scientific Inquiry:
to be curious
inquire=to ask ?s
Questions help…
form a hypothesis (educated guess)
Scientific Method:
Posing Questions Developing a Hypothesis Designing an Experiment Collect+Interpret Data Conclusion Communicating
Inferring:
explain/interpret things
Scientific theory:
well tested explanation
How people change their world to meet their needs is…
technology
engineer:
a person trained to use both technology and scientific knowledge to solve practical problems
Biosphere:
all living things
Lithosphere:
actual surface of the Earth
Atmosphere:
the air and surrounding layers
Hydrosphere:
all the water on the earth
Environmental Science:
studies earth’s environment and resources
Oceanographer:
studies the oceans
Geologist:
studies the solid earth
Meteorologist:
studies the weather and atmosphere
Astronomer:
studies the universe
Models are useful for:
understanding incomprehensible concepts
Topographic Map:
map showing the physical/surface features of an area
Topographic maps provide high information based on-
elevation, relief, and slope
A ______ _______ connects points of equal elavation
contour line
The change of elevation from contour to contour line is a…
contour interval
Contour intervals are always ___ ____
the same
Index contours:
every 5th contour line (in dark lines) and are labeled with the elevation above sea levels in round units such as 2k ft above sea level
In the US, topographic maps are at a scale of:
1:24,000
Topographic symbols:
cross: airport
ladder: railroad
flag: school
doughnut with lines: depression
swiggly lines: river
circle in a circle in a circle: elevated area
prime meridian runs thru:
Greenwich, England
latitude:
up
longtitude:
down
a mineral is:
naturally occurring inorganic, solid, crystal structure, definite chemical composition
streak:
color of a mineral power
luster:
how light shines on a mineral
density is based on=
mass
____
volume
Mohs hardness scale order:
talc gypsum calcite flurorite apatite feldspar quartz topaz corundum diamond
cleavage:
a mineral breaking evenly
fracture:
a mineral breaking unevenly
geode:
rounded hollow rock with crystal lining
solution:
mixture of a substance is dissolved in another
Minerals form by…
water solution and evaporation
gemstone:
hard, colorful mineral with a brilliant/glassy luster
smelting:
process of metals becoming filtered
alloy:
solid mixture of 2+ minerals
limestone is from:
organic rock
limestone from precipitated calcite is:
chemical rock
sandstone is…
a chemical rock
igneous rocks with large crystals are most likely…
intrusive rocks
a rock from another rock is:
sedimentary
most metamorphic rock forms:
deep underground
granite _____ a sedimentary rock
ISN’T
Rock forming minerals make the earth’s ____
crust
texture:
look and feel
intrusive:
inside
extrusive:
outside
compaction:
the process of pressing sediments
sedimentary rock from other living things:
organic rock
cementation:
gluing crystallizing minerals
erosion:
when ice, water, or wind wears away things
igneous rocks form when… cools
magma/lava
metamorphic rocks is changed by:
chemical reactions, heat, pressure
rounded or jagged=
grain shape
non-banded or banded=
grain pattern
fine/coarse=
grain size
skeletons of living coral grow together to form a:
coral reef
corals absorb…
calcium
coral shells are from:
calcite
