Social Studies
something found in nature that people can use
Natural Resource
what is left of a living thing from the past
fossil
words that describes nouns
adjectives
the use of new objects and ideas in everyday life
technology
what rocks are made of
minerals
a word that replaces a noun in a sentence
pronouns
to exchange something without using money
barter
the way water and wind change rocks
weathering
two or more words are joined together to make a new word
compound words
work done for others
services
a scientist who studies fossils
paleontologist
words that are spelled the same but have different meanings
homographs
the saving of resources to make them last longer
conservation
made up of tiny rocks and bits of plants and animals
soil
a group of letters placed before the root word or base word
prefixes
An area in the country, usually far from a city.
rural
an animal's full set of bones
skeleton
is a word that is pronounced the same as another word but differs in spelling and meaning
homophones
where people buy and sell goods and services
marketplace
tells you something about an object- for example, its color
property
the past tense is not formed by adding -ed ending, the word spelling changes
irregular verbs
a person who lives in and belongs to a community
citizen
a living thing that has died out and has none of its kind living
extinct
a particular or special person, place, or thing; the word is always capitalized
proper nouns
the exchange of one thing for another
trade
a scientist who studies rocks and puts them into groups
geologist
words that describe verbs
adverbs
A line that tells when things happened
time line
how a mineral looks when light shines on it
luster
a shortened form of a word or phrase, such as Jan. for January or Mon. for Monday
abbreviation
urban
how tough a mineral is
hardness
In the sentence _________ can be used to separate three or more words, phrases, or clauses in a series
commas