Rocks and Minerals Webquest Directions: Answer the following questions on a separate sheet of paper. You should use the websites provided for each question (the underlined titles are hotlinks). You can access this web quest from Mr. Short’s webpage. 

Rock Cycle

1. What are the three main types of rocks? 

2. How does a sedimentary rock turn into a metamorphic rock? 

3. How does an igneous rock turn into a metamorphic rock? 

4. How do metamorphic rocks change into sedimentary rocks? 

5. How do igneous rocks change into sedimentary rocks? 

6. What is the beginning of the rock cycle? The end? 

   • View this Rock Cycle animation  

   • Volcanoes

7. What kinds of rocks are formed by volcanic eruptions? 

   • Igneous Rocks. You will need to search two types of igneous rocks

8. There are two types of igneous rocks. Which type is formed underground, by magma? 

9. Which type is formed above ground, by lava? 

   • Mystery Rocks

10. Look at Photo B. How do you suppose those rocks were formed? 

    • Mohs Scale

11. What is Mohs Scale used for? 

12. What mineral is a 10 on Mohs Scale? 

13. Give an example of a mineral with a hardness of 7 (according to Mohs Scale). Tell me about that mineral. 

14. If a mineral can scratch a penny, what number is it on Mohs Scale? 

    • Streak

15. Sometimes the color and the streak of a mineral are very different. Which one of the examples shows the greatest difference? 

    • Density

16. What is the formula for density? 

17. Draw both of the boxes from the top of the website. Which one shows greater density? 

    • Pumice

18. Which type of rock is pumice? 

19. How can you make your own pumice at home? (with the help of a parent) 

20. Give at least 5 uses for pumice. (You may need to check other websites to finish this question)