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5.1 Vocabulary

Across
something that happens in a regular and repeated way
the size, extent, or importance of something relative to something else
dark shapes created when an object blocks light
a relationship between events or things, where one is the result of the other
a theory that states atoms are not created or destroyed during a chemical reaction; they are rearranged to form new substances
a period of time characterized by specific weather patterns and by the length of day and night
a collection of planets and other objects that orbit a star
an observable or measurable characteristic of matter
Down
a change that rearranges the atoms of the original substances into a new substance that has different properties from the original substances
a substance entirely made up of one kind of atom
all knowledge gained from experiments
the gravitational force exerted on an object by a planet or moon; measured in newtons (N)
a procedure designed to test whether a hypothesis is true, false, or inconclusive
a change that does not affect the chemical structure of a substance
a force of attraction between all matter
everything that has mass and takes up space
the smallest piece of matter that has the properties of an element; a combination of three subatomic particles: protons, neutrons, and electrons
a measure of the amount of matter that makes up an object; measured in grams (g)