Digestive Process
thick, slippery substance produced by the body, protects the stomach lining
What is mucus?
the internationally accepted system of measurement
What is the International System of Units (or S.I. Units)?
What is an organic material?
the spin of an object around its axis
What is rotation?
a natural satellite that orbits an object other than a star
What is a moon?
substance that breaks up fat particles, it is stored in the gallbladder
What is bile?
the expression of error as a percentage of the
accepted value
What is percent error?
removing pieces of a material
What is separating?
as the lit portion of the Moon becomes smaller
What is waning?
orbits the Sun and is massive enough to be nearly spherical in shape, and has no other large object in its orbital path
What is a planet?
proteins that speed up chemical reactions in the body; amylase turns starch to sugar; pepsin breaks down proteins
What are enzymes?
a method of writing or displaying very small or
very large values in a short form
What is scientific notation?
tool that requires muscle power to work
What is a hand tool?
the movement of one solar system object into the shadow of another object
What is eclipse?
tiny, rocky particle that moves through space
What is a meteoroid?
the part of the digestive system where most chemical
digestion and absorption of nutrients takes place
a description of how close a measurement is to an
accepted value
What is accuracy?
changing the inner structure of a material
What is conditioning?
when Earth’s rotation axis is tilted directly toward or away from the Sun; happen in June and December
What is a solstice?
small, rocky, icy object that orbits the Sun; melting ice creates a “tail"
What is a comet?
involuntary waves of muscle contraction that moves food in one direction
What is peristalsis?
0.0000000006503 written in scientific notation
What is 6.503 x 10-10
material made by combining two or more materials to form a new material that is better than each of the original materials would have been
What is a composite?
tide when there is the least difference between high tide and low tide
What is a neap tide?
The four inner planets in order from the Sun
What are Mercury, Venus, Earth, and Mars?