Rock Age
How can you find relative age of a rock?
law of superposition
If you started as magma and crystallized above ground, what would you be?
Extrusive igneous rock
What are the three types of rocks?
igneous, metamorphic, sedimentary
What is a daughter isotope?
1] a little girl who likes science 2] a stable isotope 3] an unstable isotope
2] a stable isotope
Can you melt any type of rock to make magma/lava?
Yes
What are the two types of igneous rocks?
intrusive, extrusive
what is radioactive decay?
1]when you blow stuff up to break it down 2]movement of particles from one location to another 3]the process where a nucleus of an unstable element loses energy by releasing radiation
3] thee process where a nucleus of an unstable element loses energy by releasing radiation
Can you make sediments out of any type of rock?
Yes
The 3 types of rocks are sedimentary, extrusive and metamorphic.
True or False
False
what is a half-life?
The period of time it takes to complete half of the radioactive decaying process
How do you become a metamorphic rock from igneous rocks?
increase temperature and pressure
which is a real rock?
1] gabbro
2]radistone
3]colgermate
1] gabbro
if an element has more stability than not but still has a small fraction of radioactivity, is it a parent isotope or daughter isotope?
parent isotope
What is formed when magma cools and solidifies under ground?
intrusive igneous rock
!!DISCUSS!! How are stalactites, stalagmites and salt formed? (look in Rocks Rock!)
chemical precipitation: "water removes some of a rock's minerals and carries them away. those minerals are deposited somewhere along the way, and they begin to build up. eventually the water evaporates away or becomes oversaturated with the minerals, thus creating chemical sedimentary rock. stalactites, stalagmites and salt are all formed in this manner"