topic 1
an easy way to identify rocks
What is Moh’s hardness scale?
you give sediment heat and pressure
What do you need to make sedimentary rock?
mechanical weathering
What is the type of weathering is it when wind eats away at rock?
it is floating on top of 5000 degree metals
Why does the earth's crust move?
yolkon and vancuver
Where do earthquakes happen in canada?
diamond
What is the hardest mineral on earth?
rocks and minerals, as well as the remains of plants and animals.
What do you need to make sediment?
chemical weathering
What is the type of weathering that eats away at hard surfaces by chemical reactions?
iron and nickel
What is earth's core made of?
the motion of the ground during an earthquake
What does a seismograph measure?
talc
What is the softest mineral on earth?
high heat, high pressure, hot mineral-rich fluids
What do you need to make metamorphic rock?
biological weathering
What is the type of weathering that eats away at mainly rock by plants or animals?
biological evidence, evidence from rocks, and geological evidence of climate
What are the three signs of continental drift?
the largest wiggle (amplitude) on the recording
What does the richter scale measure?
Cleavage, Streak, Hardness, Fracture, Luster
What are the 5 properties of a rock?
when hot, molten rock crystallizes and solidifies.
How do you make igneous rock?
frost wedging
What happens when frost is created in between rocks and they start to spread apart?
sonar waves
How do scientists calculate the depth of oceans?
longitudinal compression waves similar to the motion of a slinky
What are primary or p waves?
an element
What can a mineral also be?
obsidian
What is magma that cools above the surface called?
underwater caves
water eats away at rocks underwater and can create what?
they push up land to create things like volcanoes
What happens when tectonic plates Converge?
ground shaking, surface faulting, ground failure, and less commonly, tsunamis.
What are the effects of earthquakes?