Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
- 3rd side (hint)
What are the 3 sub-particles in a atom?
|
Protons Neutrons Electrons |
O |
|
Protons and neutrons form what massatomic |
Atomic |
|
|
The atomic number is the number of what |
Protns |
|
|
A tiny particle that has no mass and has a negative charge is called what? |
A neutron |
|
|
What are the smallest particles of an element that retains the elements characteristics? |
Atoms |
|
|
Definition of an element |
A part or aspect of something |
|
|
What are the 4 states of matter? |
Solid Liquid Gas Plasma
|
|
|
What is a mineral? |
Natural materials |
|
|
Define inorganic |
No life |
|
|
What are the 2 types of igneous rocks? |
Extrusive Intrusive |
|
|
Where are extrusive rocks formed? |
Earth's surface |
|
|
What crystal size do extrusive rocks have |
Small because lava cools fast and forms small grain |
|
|
Where are intrusive rocks formed? |
Formed from magma under ground |
|
|
What size of grain do igneous rocks have? |
Large type because it cools slowly. |
|
|
What are 2 things needed to create metamorphic rock? |
Heat and pressure |
|
|
List 4 eras of geologic time in order |
Pre-Cambrian era Paleozoic Mesozoic Cenozoic |
|
|
What era did dinosaurs exist? |
Mesozoic |
|
|
Law of superposition |
Oldest layers are on the bottom |
|
|
Are faults always younger or older than the rocks they cut through? |
Younger |
|
|
Intrusive igneous rock helps us get a relative age of rock strata because it is younger or older ?than the rock if cuts through |
Younger |
|
|
Scientists use radioactive elements in samples to determine the. Age of substancea |
Absolute age |
|
|
Radioactive elements in samples decay at Rates, allowing for accurate dating. |
Constant rate of decay |
|
|
What % of earth does core comprise? |
15 % |
|
|
What % of earth does the mantle comprise? |
84 % |
|
|
What % of earth does the crust comprise? |
1 % |
|
|
What are 3 main layers of earth?core |
Core Mantle Crust |
|
|
5 physical layers of the earth |
Lithosphere Asthenosphere Mantle Outer core Inner core |
|
|
Relative age |
Age of rock compared to other rocks |
|
|
Absolute age |
Estimated age of when rock was formed |
|
|
3 different shapes of volcanoes |
Cinder cone Composite Shield |
|
|
What does cider cone volcano look like?v |
Flat done shape because it regularly throws out ash that builds flat dons shape |
|
|
What does composite volcano look like ? |
Vocal no emits stiff, fast hardening lava that forms high steep sided cones |
|
|
What do shield volcano look like? |
Lava flows over crater rim and forms broad low profile |
|
|
Ring of fire |
Long chain of volcanoes around the Pacific Ocean |
|
|
Difference between lava and magma |
Lava is on earths surface and magma is under earth's surface |
|
|
Hot spot volcanoes form by |
Formed by pressure building up and pushing molten lava up til the earth cracks and lava pours |
|
|
Where do most volcanoes form? |
Mid-ocean ridges Subduction zones |
|