Houston Community College Wk 5 Igneous Rocks Review Questions
Assignment -Igneous Rocks Review Questions- Use the lecture slides and outline, then the ebook – use google last
- What is meant by the word “Igneous”?
- What type of rock is Mt Rushmore carved into?
- Name two igneous rocks formed below the earth’s surface
- What is the main difference between magma and lava?
- What igneous rock floats on water? (You may have to look this one up)
- Which Igneous rock is called volcanic glass?
- What is obsidian used for today? (2 different uses)
- List 4 extrusive igneous rocks. These rocks will be found near what geologic structures?
- Looking at igneous rocks- what could you observe that would help you know if it is an extrusive or an intrusive igneous rock?
- What igneous rock is the most abundant and why – what makes it so abundant (think about this before you answer- extra credit given for a good thoughtful answer- copying something off of google won’t count- I want your own words)
