Domain-Specific Vocabulary

Answer Key - Grade 3 Grammar Worksheet - Challenge Me

Circle the answer, or write your answer on the lines.

1. 1.

   In “The fossil showed a fern that lived long ago,” what is a fossil?

   • a new plant that grows on top of rocks
   • a map that shows very old places
   • a trace of an old plant or animal, kept in rock
   • a shiny stone you can find in a river
2. 2.

   In “Thick fur is an adaptation that helps a polar bear stay warm,” what is an adaptation?

   • a body part or habit that helps it survive
   • a stage in a polar bear's life cycle
   • a kind of cold weather near the North Pole
   • a place where polar bears live in the far north
3. 3.

   In “A diary from 1850 is a primary source,” what is a primary source?

   • a map that shows the whole wide world
   • a story that someone made up later
   • a book written many, many years later
   • something made by a person who was there
4. 4.

   In “The garden is 6 feet long and 3 feet wide, so its area is 18 square feet,” what does area measure?

   • how heavy a shape is
   • the distance around a shape
   • how tall a shape is
   • the space inside a shape
5. 5.

   In “The town has a scarcity of water this summer,” what does scarcity mean?

   • having too much of something
   • a tank where a town stores water
   • a kind of summer rain storm
   • not having enough of something
6. 6.

   In “The numerator of 2/3 is 2,” what does the numerator tell?

   • how many equal parts are counted
   • the size of the whole
   • how many wholes there are
   • how many equal parts are in the whole
7. 7.

   In “The mayor leads our city's government,” what is a mayor?

   • a judge who works in a court
   • the leader of a country
   • the leader of a city or town
   • a person who makes laws for a state
8. 8.

   In “Evaporation turned the puddle into water vapor,” what is evaporation?

   • water turning into hard ice
   • water changing from a liquid to a gas
   • water changing from a gas to a liquid
   • water soaking down into soil
9. 9.

   In “The climate of the desert is hot and dry,” what is climate?

   • the amount of rain in one big storm
   • the weather on just one day of the year
   • the plants that grow in a dry place
   • the usual weather of a place over many years
10. 10.

    Use the word erosion in a sentence that shows what it means. Draft: The river slowly wore away the rocks.

    Example: Erosion happened when the river slowly wore away the rocks.