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Mapa Mental
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anna clews
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gcse Core Science Mapa Mental sobre B1, C1 & P1, creado por anna clews el 24/11/2016.
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core science
gcse
Creado por
anna clews
hace alrededor de 8 años
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7102182
mind_map
2017-05-23T14:36:46Z
B1, C1 & P1
B1
fitness= ability to do
exercise
health= free from disease
high bp= brain damage(stroke).
BMI=mass in kg/heigt in m2
EAR= 0.6 x body mass in
kg
Depressant and stimulant drugs
affect nervous system.
smoking,
unhealthy
diet = high BP
mosquito is a vector
that carries malaria
plasmodium
is the
pathogen
that causes
malaria. Its a
parasite and
human its
host
homeostatis = maintaining a constant
internal enviroment
auxin are group of
plant hormones.
Auxins involved in
phototropism ( response to
light) Geotropism (
response to gravity)
Light rays are refracted as they pass
through cornea and lens.
Eye accomodates by altering the lens shape.
monocular vision has a wider
but poorer distance judgement
than monocular vision
A nerve impulse travels along axon of
neurone.
A
neurotransmitter
substance
diffuses across a
synapse- next
nerve impulse
can pass to the
next neurone.
spinal reflex involves a
receptor sensory, relay &
motor neurones & an
effector
alleles are different versions of the same
gene
Gender is determined
by sex chromosomes-
XX=female , XY = male
human body cells have 23 pairs of
chromosomes
inherited disorders caused by
faulty alleles
dominant alleles are expressed if
present. Recessive alleles
expressed in absence of dominant
allele.
Homozygous having 2 identical alleles,
being heterozygous having 2 different allels.
most faulty
alleles are
recessive.
P1
Energy is transferred from a hotter to a
colder body.
temperature is a measured of hotness on an
arbitray scale, measured in C*.
Energy is
measured
of energy
transfer (
on
absolute
scale) J
Energy
transferred
= mass X
specific
latent heat.
Air is a
good
insulator &
reduces
energy
transfer
by
conduction
Conduction
in solid is
by the
transfer of
kinetic
energy.
Trapped
air reduces
energy
transfer by
convection.
Convection
currents
are caused
by density
changes.
Energy
saving in
home can
be
achieved
by: *
double
glazing *
capacity
wall
insulation *
curtains
Shiny
surfaces
reflect
infrared
radiation
to reduce
energy
transfer
Energy
transformation
can be
represented
by Stankey
diagrams
Efficiency=
useful
energy
output
(x100) \total
energy input
Warm&
hot
objects
emit
infrared
radiation
Infrared
radiation is
used for
cooking
Microwaves
can be used for
cooking&
communication
Laser light
is single
colour and
in phase.
Laser light ,
visible
light and
infrared
are all
used to
send
signals
along
optical
fibres by
total
internal
reflection
Digital and
analogue
signals
allow many
signals to
be
transmitted
at the same
time.
Morse is a
digital
code
Digital
signals
allow many
signals to
be
transmitted
at the same
time
Digital
signals are
clearer
Electromagnetic
spectrum
Radiowaves
Microwaves
Infrared
radiation
Visible
light
Ultraviolet
X-rays
Gamma
rays
The energy
of the wave
length
increass
Digital and
analogue
signals
allow many
signals to
be
transmitted
at the same
time.
Morse is a
digital
code
Digital
signals
allow many
signals to
be
transmitted
at the same
time
Digital
signals are
clearer
Electromagnetic
spectrum
Radiowaves
Microwaves
Infrared
radiation
Visible
light
Ultraviolet
X-rays
Gamma
rays
The energy
of the wave
length
increass
earthquake waves travel through the earth.
different waves help us find out about the inside of the earth
Exposure to UV radiation causes sunburn and skin cancer.
sun-cream reduces damage caused by UV radiation.
CFCs cause ozone layer to be thinner.
Radio waves used for
communtication
C1
Crude oil mixture of
many hydrocarbons
Hydrocarbons with bigger
molecules = stronger intermolecular forces
Hydrocarbons with smaller molecules =
weaker intermolecular forces
cracking converts large
alkane molecules --->smaller
alkane and alkene molecules
cracking helps oil refinery match
its supply of useful products
(petrol) for demand
crude oil seperated by
fractional distilation.
heated at bottom
Fractions ( low bp) exit at top
Fractions ( high bp) exit at bottom
fossil fuels finite ( non renewable) resources being
made slower than fast demand
AlkANE= single covalent bond only.
AlkENE= double covealnte bond
Photosynthesis, respiration & combustion =
processes in carbon cycle
clean air - 21%= oxygen 78%
nitrogen 0.35% = CO2
choosing a fuel: energy value, avalbility storage . pollution
Nylon + Goretex = tough ,
lightweight,keeps water out
Goretex also allows water to pass through
so sweat doesn't condense
Protein molecules in egg and
meat denature ( change shape)
when cooked
emulsifiers are molecules with...
hydrophilic tail= water loving
hydrophobic tail = oil loving
perfumes need to evaporate so can reach nose
Paints are collids as they're mixed (
collective particles)
Thermohromic pigments= change colour with heat (
used in babies bath toys)
phosohorescent pigments glow in dark
and much safer to use in products
original atmosphere came from early volcanoes ( high in rich water and CO2)
oceans made from condensated water
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7102182
mind_map
2017-05-23T14:36:46Z
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