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6th Grade Spring Final 2019
Terms in this set (40)
Why are biomass fuels considered to be renewable?
Crops can be replanted, although this takes time.
Why are fossil fuels considered nonrenewable resources?
They take a long time to form and are being used up more rapidly than they are formed.
What are some of Earth's energy sources?
Fossil fuels, solar power, Hydrogen fuel cells, geothermal energy, Biomass fuels and hydroelectric power
Which source of energy involves splitting atoms to generate electrical energy?
Which strategies are best for a city to use to increase energy conservation?
Invest in good public transportation and encourage energy-efficient building development
What does it mean to say that something is "energy efficient"?
When compared to similar products, most energy is used to perform work.
In which part of a nuclear power plant does fission take place?
A student wants to use fewer energy resources in her daily life. Which plan is an effective way for her to conserve energy?
Take the bus instead of driving a car to the grocery store.
Which of the following describes energy conservation?
Finding ways to use less energy
How has human energy use changed over time?
From burning wood to burning fossil fuels
Lodestone is magnetic. How might you identify whether a mineral sample might be lodestone?
By determining if it attracts metal objects
At what rate does magma deep below Earth's surface cool? What size of crystal results from magma cooling deep below Earth's surface?
Slowly; large crystals form
Which of the following is a characteristic of a mineral?
It must be able to form from inorganic processes, It has a definite chemical composition, and It is a solid.
Which set of properties might identify an unknown mineral for a geologist?
Color, hardness, luster, and streak
Pumice is a rock that forms from molten material that erupts violently from a volcano. What type of rock is pumice?
Which of the following describes a way that minerals can form?
From organic process in ocean organisms, From evaporation of the water in a salt solution, and From crystallization of elements and compounds in a cooling solution
How does igneous rock form?
From the cooling of magma or lava
Which of the following is the best listing of the processes involved in the formation of most sedimentary rocks?
Weathering, erosion, deposition, compaction, and cementation
What is a metamorphic rock?
A rock that forms from another rock as a result of heat, pressure, or both heat and pressure
Which statement best describes the rock cycle?
Any type of rock can form from any other type of rock as a result of heat and pressure.
What does a convection current transfer within a fluid?
How do heat and density affect convection currents in the mantle?
Heat from the core and the mantle decreases the density of rock, so the less dense rock rises upward.
What would a model of Earth tell you about Earth's structure?
Earth consists of three main layers: the crust, the mantle, and the core.
Which feature is most closely associated with a divergent plate boundary on land?
Why does subduction occur?
Gravity causes older, denser oceanic rock to sink beneath less dense rock.
What instruments do geologists use to locate an earthquake's epicenter?
The energy released by an earthquake in the form of seismic waves moves out from which point?
What is stored in rocks during plate movement and released during an earthquake?
How can plate tectonics cause volcanic eruptions?
When two oceanic plates collide, the denser crust is pushed down, rock melts, and magma rises upward.
Which layer of Earth is the thinnest?
Which is a correct list of the planets in order of increasing distance from the sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Which factor played the major role in forming the solar system?
Why are objects in the solar system different from each other?
They formed from different materials and at different distances from the sun.
What keeps the planets in orbit around the sun and the moon in orbit around Earth?
How are mass and weight different?
Mass measures the amount of matter in an object; weight measures the effects of gravity.
What keeps Earth from falling into the sun?
Which term describes loops of gas that extend from the sun's surface?
What property of Venus and Mercury makes them very different?
Their average surface temperatures, their surface features, and their atmospheres
Besides being in orbit around the sun, what other characteristics must an object have to be a dwarf planet?
It is round and has not cleared its region of space.
Which of these statements best describes a heliocentric model?
All the planets and smaller objects orbit the sun.
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