A
Stretchy tissues that help move our bodies
Muscles
These connect muscles to other muscles or muscles to bones
Tendons
The places in your body where two or more bones meet to all movement
Joints
These support our bodies and help to form our structure. They also store calcium and make blood cells.
Bones
You close these reflexively if something comes near your eye.
Eyelids
The colored part of your eye that controls the size of the opening that lets light in.
Iris
The opening in the center of the eye through which light enters.
Pupil
The back lining of the eye that contains light-sensitive cells and sees the image entering the eye upside down and backwards.
Retina
The clear outer protective layer at the front of the eye
Cornea
The muscular organ in the chest that pumps blood throughout the body
Heart
True or False: Bones are living tissues that can grow and repair themselves.
True
Nearsighted people can see better ____ (near or far)
Near
True or False: The musculoskeletal system includes the bones and the muscles attached to them.
True
The nerve that sends images from the eye to the brain
The optic nerve
Tubes that carry blood throughout the body
Blood vessels
The number of bones in an adult human body
206
Name two things bones and muscles need to be healthy.
(any of) a healthy diet, exercise, rest
The study of the universe and everything in it including planets, stars, galaxies, comets and black holes.
Astronomy
An educated guess or prediction that has not yet been tested or verified
Hypothesis
A tasteless, odorless gas found in our atmosphere that is necessary for life
Oxygen
Any living plant, animal, fungus and bacterium
Organism
The process by which a liquid turns into gas (for example water turning into water vapor)
Evaporation
A procedure that is performed and repeated under controlled conditions to test a hypothesis
Experiment
Animals with backbones are called...
Vertebrates
Biology