Open Court Vocabulary for

1
Open Court Vocabulary for

• Why Did the Dinosaurs Disappear?

Genre Expository Text
2
climate
( the normal weather conditions of a place )

• The climate during the Ice Age was very cold.

3
protection
( the keeping of someone or something from harm )

• A turtles shell gives it protection.

4
moisture
( water or other liquid in the air or on a
surface )

• We can see the moisture of dew on the grass early
  in the morning.

5
erupt
( to break out suddenly with force )

• Earthquakes made volcanoes erupt all over the
  world.

6
crater
( large hole )

• The meteorite made a huge crater when it hit the
  Earth.

7
( rocks from outer space)

• Meteorites fall to the Earth pulled by Earths
  gravity.

8
discovery
( something that is seen or found out for the
first time )

• A new discovery gave scientists a new idea why
  the Earth became so cold.

9
starved
( had nothing to eat )

• The dinosaurs may have starved to death.

10
moisture
( water or other liquid in the air or on a
surface )
11
climate
( the normal weather conditions of a place )
12
erupt
( to break out suddenly with force )
13
( rocks from outer space)
14
starved
( had nothing to eat )
15
( rocks from outer space)
16
protection
( the keeping of someone or something from harm )
17
crater
( large hole )
18

• Why Did the Dinosaurs Disappear?

Scientists have lots of theories (ideas), but we
will never know for sure. You will have to
decide which theory you agree with the most.