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Science Mid Term
mid term exams vocab and questions (EOC)
| Question | Answer |
|---|---|
| What is a control variable? | The part that remains the same |
| What is an independent variable? Where is it located on a graph | 1)The part that changes only if you change it 2)X-axis |
| What is a dependent variable? Where is it located on a graph? | 1)The part that changes as other variables change 2)Y-axis |
| What happens to braking distance as friction decreases? | Braking distance increases |
| What does erosion and deposition look like? | Erosion takes things away, see sediments throughout the water, deposition has clear water with sediments at the bottom |
| What causes deflation? | Wind erosion |
| How do slumps occur? | Water decreases friction between soil particles |
| What are the agents of chemical weathering? | Water, oxygen, carbon dioxide |
| Chemical weathering favors what type of climate? | Warm+moist |
| What will increase the rate of chemical weathering? | increase the surface area and temperature |
| What two factors contribute the greatest to potential erosion? | Water and Slope |
| What is the lowest level any river can reach? | C level/ ocean |
| Water can flow through parts of the aquifer be cause of _____? | permeability |
| What is infiltration? | Water soaking into the ground |
| Where does one find the youngest part of the ocean? | Mid ocean ridge |
| What happens to the Earth's crust at transform boundaries? | Slides by, no new crust, cant be created or destroyed |
| How do convection currents work? | Hot magma moves from a warmer region to a cooler region |
| What happens to Earth's crust at an oceanic-oceanic convergent boundary? | subduction |
| What is a slab pull and how does it relate to convection currents? | slab subducts, because currents pull down |
| Why was Wegener's hypothesis of continental drift not widely accepted when he first proposed it? | he couldn't explain why or how this happened, but he had physical evidence. |
| seafloor spreading produces _______? | New crust |
| Convection currents occur in what part of the Earth? | The mantle |
| How does tension affect Earth's crust? | seperates the plates |
| What is Paleomagnetism? | Study of Earth's magnetic fields |
| What is a deep sea trench? | Large narrow depression at subduction boundaries |
| What is an underwater mountain range? | Mid ocean ridge |
| Where is the epicenter of an earthquake found? | point on the surface, directly above focus |
| Where is the most of the damage from an earthquake? | The epicenter |
| What is the focus of an earthquake? | point of origin |
| What is the best example of a strike-slip? | San Andreas Fault |
| What is a seismic gap? | An area where an earthquake hasn't occurred over time |
| What is meant by the isotopes half-life? | The time it takes for half of the material to decay |
| How the rate of decay useful for determining absolute age of samples? | The rate always remains constant |
| Radiocarbon dating can only be used for dating what types of materials? | Organic materials |
| What are the 5 fields of Earth? | Astronomy, Geology, Oceanography, Meteorology and Enviromental science |
| what is Wegener's hypothesis of continental drift? | Coal beds, shapes of continents, fossils, rocks, mountains and glacial features, |
| What happens at subduction zones? | 1)Plate is pulled under 2)Plate is melted 3)Volcanic formation |
| Magnitude | Measures the energy of an earthquake |
| Modified Mercalli Scale | Rates intensity of an earthquake |
| Tsunami | Giant sea wave produces by an earthquake |
| Fault | Fracture in the Earth's crust |
Created by:
LauraAlice
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