Login

Extrusive Rocks: Definition & Examples

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is the term for rocks formed by crystallization of lava on the earth's surface?

Start Your Free Trial To Take This Quiz

As a member, you'll also get unlimited access to over 35,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Free 5-day trial
It only takes a few minutes to set up and you can cancel at any time.
Already registered? Login here for access

1. Which of these can be used to tell whether a rock is extrusive?

2. What is the rock type that forms from lava cooled so quickly that no crystals formed?

Start your free trial to access this entire worksheet
A premium account gives you access to all lesson, practice exams, quizzes & worksheets
Access to all video lessons
Quizzes, practice exams & worksheets
Certificate of Completion
Access to instructors
Create an account to get started Create Account

About This Quiz & Worksheet

Use this quiz/worksheet combo to help you test your understanding of the characteristics of extrusive rocks. Some of the information you'll be assessed on includes knowing the ways to distinguish extrusive rocks from other types of rocks as well as identifying the rock type that forms from lava cooled so quickly that no crystals form.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Term for rocks formed by crystallization of lava on the earth's surface
  • Distinguish extrusive rocks from other types of rocks
  • Rock type that forms from quickly cooled lava
  • Vesicles in extrusive rocks defined

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on extrusive rocks
  • Interpreting information - verify that you can read information regarding vesicles in extrusive rocks and interpret it correctly
  • Information recall - access the knowledge you've gained regarding the rock type that forms from lava cooled so quickly that no crystals form
  • Knowledge application - use your knowledge to answer questions about ways to distinguish extrusive rocks from other rock types

Additional Learning

To learn more about rock types, review the accompanying lesson on Extrusive Rocks: Definition & Examples. This lesson covers the following objectives:

  • Define and differentiate extrusive rocks and intrusive rocks
  • Know what to look for when identifying extrusive rocks
  • Relate the characteristics of obsidian
Support