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My Year 8 Science Journey - Coggle Diagram
My Year 8 Science Journey
Energy and work
Type
potentail
gravitational
elastic
sound
light
electrical
thermal
kinetic
nuclear
chemical
energy transfer
cannot be destroyed or created, energy can be transferred from one from into another.Called energy conversation
efficiency
definition
the ability to do something or produce something without wasting time, materials, or energy
equation
useful energy out / total energy in
work down(J)
definition
energy has been transferred
equation
Force*Distance
energy sources
renewable
solar, wind, geothermal, hydro, tidal, biomass
non-renewable
coal, oil, gas, nuclear
Periodic table
atom structure
shell
protons
positive
neutron
neutral
electrons
negative
nucleus
group 1(alkali)
very reactive
low melting point
react with water
group 7(halogens)
reaction non-metal
made of two metal
group 8(nobele gases)
unreactive
Body systems
skeletal system
function
support the body
help the body move
protect internal organs
to make blood cells
store and release minerals
Joints
definition
important to help our skeletal bend and move
occur where 2 or more bones join together
Hinge
movement 180°
ball and socket
rotate in 360°
fixed
do not move
pivot
rotate around each other by 360°
muscular system
definition
around all over your body, lots of muscles cells works together to cause movement.
shoulder muscles
raise and lower the arms
abdominal muscles
move the torso and help with breathhing
thigh muscles
move the lower loeg
shin muscles
help move the foot up and down and side to side
neck muscles
hold the neck up,and help is move
triceps
straighten the arm
bricers
bend the arm
calf muscles
pull the heel up and point the toe
nervous system
definition
nervous system includes organ like brain and spinal cord, and nerve tissue made of nerve celss
reaction time
amount of time needed for the nervous system to receive a message then message the body to respond
sensory system
senses
taste
sight
touch
smell
hearing
eye
optic nerve
retina
cornea
pupil
lens
iris
ciliary
respiratory system
definiton
made of from all the organs that work together to help us breathe
cartilage
trachea
right&left lungs
rib
bronchus
alveoli
bronchioles
diaphram
equation
oxygen+glucose→carbon dioxide+ water+energy
The movements of the abdomen and the chest cavity are opposite to each other.
circulatory system
function
pump blood around body
heart(double pump)
oxygenated
left atrium
left ventricle
deoxygenation
right atrium
right ventricle
Wave
Transfer waves
up and down
light
ocean
microwaves
longitudinal
side to side
sound
Acid and base(alkalis)
indicators
litmus paper
blue(alkali)
red(acid)
red cabbage
red pink orange yellow（1-6）
acid
green blue perple
alkali
yellow green(7)
water
funny things
you can using any each one to test the things in your daily life