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Science
California Science
Grade 5
e-Glossary
M
List of Words for Letter ‘M’
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malleable
capable of being rolled or pounded into flat sheets
mammal
a vertebrate animal with hair that feeds its young milk
mass
the amount of matter in an object
matter
anything that has mass and takes up space
measure
to find the size, volume, area, mass, weight, or temperature of an object, or to find how long an event occurs
melting point
the particular temperature at which a substance changes state from solid to liquid
metal
any of a group of elements found in the ground that conduct heat and electricity
metalloid
a small group of elements with some properties of both metals and nonmetals
metamorphosis
a process in which something changes form from one thing into another thing
meteor
a small piece of ice, rock, or metal that enters Earth's atmosphere
meteorologist
a scientist who studies Earth's atmosphere and weather
microscope
a tool that magnifies objects
mitochondria
structures within a cell that break down food and turn it into energy
mixture
a physical combination of two or more substances that does not form a new substance
molars
the flat teeth in the back of the mouth
molecule
a particle that contains two or more atoms joined together
mollusk
invertebrate animals with an external or internal shell
monsoon
a seasonal wind usually associated with heavy rains
moon
an object that circles around a planet
mucus
a slippery liquid inside the body
multicellular
made up of more than one cell
muscular system
the organ system made up of muscles attached to bones