AES.5c1 Igneous Rocks

Igneous Rocks form by what process?

• Weathering 
• Metamorphism
• Crystallization
• Evaporation

If an igneous rock forms with lots of space and over a long period of time, what will the rock have?

• no mineral crystals
• smaller crystals
• both small and large crystals
• larger crystals

Not all minerals crystallize at the same time. What is this called?

• fractional crystallization
• partial crystallization
• porphyritic crystallization
• total crystallization

Which is true of this image?

• All minerals form from magma at the same time.
• As minerals form, the composition of magma changes.
• As more magma is crystallized the number of atoms in magma remains constant.
• Igneous rocks form from precipitation in water.

Tags

NGSS.MS-ESS2-1

Which is true according to this image?

• Igneous rocks are formed from only one mineral type.
• More minerals form in magma as it heats up.
• The composition of magma is unchanged as it cools.
• Different minerals form as the magma cools through time.

Tags

NGSS.MS-ESS2-1

According to the Bowen's reaction series, which mineral forms at the hottest temperature?

• Olivine
• Pyroxene
• K-spar
• Quartz

According to the Bowen's Reaction Series, which mineral forms at the coolest temperature?

• Olivine
• Pyroxene
• K-spar
• Quartz

What category of igneous rock has no crystals at all?

• glassy
• aphanitic/extrusive
• phaneritic/intrusive
• porphyritic

What category of igneous rock has two different sizes of crystals?

• glassy
• aphanitic/extrusive
• phaneritic/intrusive
• porphyritic

What category of igneous rock has mineral crystals that are large enough to identify without a microscope?

• glassy
• aphanitic/extrusive
• phaneritic/intrusive
• porphyritic