Engineering Design Process
what are the four main types of bridges
suspension, arch,cable-stayed,beam
define permeability
the ability for liquid to flow through
define aquifer
underground layer of permeable rock
explain how land could affect the way natural resources are distributed across the earth
water or volcanic activity
which scientist is credited for the discovery of natural selection?
charles darwin
what is the engineering design process?
A thinking process used to teach and apply concepts and skills in an integrated manner.
define porosity
rock that has holes that water can enter
why would gravel be the best material to use when building an aquifer model?
because its more permeable and has more porosity so it flows better
explain how altitude could affect the way natural resources are distributed across the earth
oxygen levels change as you go up a mountain
define natural selection
the idea that creatures will pass along traits to help them survive
what are good designs able to so when it comes to constraints?
overcome them
are fossil fuels considered renewable or nonrenewable?
nonrenewable because of how long they take to make
how are natural resources distributed across the earth?
unevenly
give three reasons why freshwater is considered a limited resource
theres 1% compared to oceans.
we are using a lot of it
we will eventually run out
define selective breeding
choosing parents with differences
how many solutions to a problem are possible when using the engineering design process?
many solutions
what are the three types of fossil fuels?
coal,oil,natural gas
why does not every area have copper?
because of humans and terrian
define groundwater
define variations in genetics
difference among species
what are the steps in the engineering design process?
which fossil fuels come from living organisms that died millions of years ago?
coal and oil
explain how climate could affect the way natural resources are distributed across the earth
weather
define surface water
water found above earths surface
define mutation
permanent change to a gene