How many valence electrons does this have?

Which element does this atom represent?(Refer to the periodic table)

What ionic compound is formed by the ions Al^3+ and O^-2

The figure shows the arrangement of atoms in a substance. What is the substance?

Which is an example of a heterogeneous mixture? 

What is ice converted into during sublimation?

Many musical instruments are made up of brass, which is a mixture of a mixture of copper and zinc atoms. What is brass an example of?

What happens to a gas when it condenses and forms a liquid?

What kind of ion is presented in an acid?

Which mineral property is being tested?

Which property causes the mineral galena to break into tiny cubes?

What characteristic is used for classifying minerals into individual groups?

A mineral has a mass of 100 g and volume of 50 cm3. What is its density?

What is the correct chemical formula for a silicon oxygen tetrahedron?

Where do the tetrahedra bond to each other?

What group of minerals is composed mainly of these tetrahedra?

Which is an example of a mineral whose streak cannot be determined with a porcelain streak plate?

Which is one of the three most common elements in Earth's crust?

What is the main factor that determines the formation of the minerals listed in the table?

Calcite is the dominant mineral in the rock limestone. In which mineral group does it belong?

What mineral fizzes when it comes in contact with hydrochloric acid?

Dull, Silky, waxy, pearly and earthy are terms that describe which property of minerals?

For a mineral to be considered an ore, which requirement must it meet?

Which is the first mineral to form in cooling magma?

Which process is occurring in the diagram?

Which minerals are associated with the right-hand branch of Bowen’s reaction series?

Which magma type contains the greatest amount of silica?

Which does not affect the formation of magma?

Which intrusive rock has the same composition as andesite?

Which process formed this rock?

which type of ultrabasic rock sometimes contains diamonds?

What effect does a fast cooling rate have on grain size in igneous rocks?

what term describes igneous rocks that crystallize inside Earth?

Which minerals are most common in granite?

Which area is surrounded by the Ring of Fire?

In the diagram, what is the structure labeled 1?

In the diagram, what is the structure labeled 2?

Which is not true?

Which type of volcano is shown?

What is the feature labeled 1?

What causes the magma to rise upward in a mantle plume?

Which type of volcanism produces the most lava annually?

Which clastic sediment has the smallest grain size?

Which is a coarse-grained clastic rock that contains angular fragments?

Which is often a biochemical rock containing fossils?

Which process forms salt beds?

Which does not cause metamorphosis?

Which best describes this rock's texture?

From what igneous rock does this sample usually form?

Which agent of erosion can usually move only sand-sized or smaller particles?

 Which would you expect to have the greatest porosity?

By what process are surface materials removed and transported from one location to another?

Which suggested to early cartographers that the continents were once joined?

What was Wagner’s hypothesis called?

What type of boundary is shown?

Which feature forms along this type of boundary?

The weight of a subducting plate helps pull it into a subduction zone in which process?

Which is a convergent boundary that does not have a subduction zone?

Approximately how long did the Gauss epoch last?

Which epoch saw the most fluctuations between normal and reverse polarity?

Generally, what is the age of oceanic crust?

Which observation was not instrumental in formulating the hypothesis of seafloor spreading?

How fast do plates move relative to each other

What process creates deep-sea trenches?

What is stress?

Which type of fault is shown?

Which type of force caused this fault to form?

In which direction is the movement in this type of fault?

Which type of geological material is most prone to liquefaction?

Which type of wave is labeled X?

At what time did the surface waves arrive at this section?

What can the difference in travel times between P- and S- waves be used to determine?

Which seismic hazard is a form of structural failure?

As shown, which direction does the icy water move?

which is modeled by the water movement?

Which is not a force causing plates to move?

 The end of which era is marked by the largest extinction event in Earth’s history?

How old is a mammoth’s tusk if 25 percent of the original C-14 remains in the sample? The half-life of C-14 is 5730 years.

Which time period is missing in the diagram?

 Which is not a typical characteristic of an index fossil?

Which is the smallest division of geologic time?

Which geologic principle is used when a geologist observes an outcrop of rocks and determines that the bottom layer is the oldest?

Uranium-238 breaks down into thorium-234. Which is thorium-234 in relation to uranium-238?

What does this diagram show?

Trees that have been buried by volcanic ash are likely to be preserved in which manner?

Which are glacial lake sediments that show cycles of deposition?

 What process contributed to the formation of Earth's early atmosphere?

Which was not a source of heat for early Earth

Which part of the Earth is the most dense?

In which part of Earth would you find granite?

Why is oxygen gas important to life on Earth?

Upon what age of Earth do most scientists agree?

A meteorite is a fragment of which object?

20. What is the name of the continental labeled X in this figure of Rodinia?

 Which is likely to give the oldest radiometric age date?

Which was the earliest type of life on Earth?

 Refer to figure 6 in the text. How old are the rocks that underlie most of the State of Arizona?

Which was the dominant terrestrial life form during the Mesozoic Era?

Which term describes a shoreline that is experiencing no tectonic activity?

What formed the deposits in the photo above?

Where would these deposits most likely have formed?

 Which item could be made from this deposit?

 How much of Earth’s land surface did glaciers cover at the height of the ice ages?

 Which metal that is rare in Earth’s rocks but relatively common in asteroids is used as evidence that there was an asteroid impact at the end of the Cretaceous?

 Which supercontinent formed at the end of the Paleozoic?

What does the succession of rocks in the figure above indicate?

Which is a likely origin of the limestone?

 What is evidence of an arid climate in North America At the end of the Triassic?

In which direction is the movement in this type of fault

During which geologic time did Atlantic Ocean begin to form