4th Grade Vocabulary Review 2

Vocabulary   Review 2

1.  abiotic—nonliving parts of an ecosystem
2.  biome—a large region in the same climate and geographical area
3.  continually—often repeated; again and again
4.  earthquake—a shaking of the land that occurs when huge areas of rock move
5.  environment—all living and nonliving surroundings that affect an organism
6.  explanation—a reason why something happened
7.  field investigation—a study done often outdoors
8.  hazard—to expose to danger or harm
9.  investigation—a study by close examination
10.  journal—a daily record or account
11.  precaution—something done beforehand to prevent harm or danger
12.  reaction—an action in response to something
13.  reasonable—showing or using good sense and thinking
14.  various—different kinds; more than one
15.  volcano—an opening in the earth’s crust where molten lava and gases erupt