science 4 test 1

Skeleton

the bones inside our body joined together to form a frame

Frame

support and shape from the inside

Bones

hard,strong parts inside our body

Skull

bones of the head

Jaw

skull bones move when we eat or talk

Hip

the bones that join the leg and upper body

Spine

the bones of back

Rib cage

the bones of chest

Model

an object or drawing that helps us understand how something works

Function

the job or use of something

Support

hold up something so that it doesn't fall down

Protect

keep safe

Muscles

part of the body that are joined ,allow us to move

Organs

inside our body that do different jobs

Length

how long something is

Contract

muscles shorter and fatter

Relax

muscles longer and thinner

Exoskeleton

hard skins or shells

Invertebrate

no backbone or spine

Vertebrate

has a backbone or spine

Identification key

set of questions name or group

Germs

tiny living things

Infect

germ get into make you ill

Infectious disease

disease

Instruction

information

Medicines

subtances help us get better

Prevent

stop

Vaccination

injections or other medicines