igneous rocks

Intrusive Igneous rocks will be 

• coarse grain
• fine grain

If an Igneous rock is dark-colored, what is the amount of silica?

• high
• low
• doesn't matter

Is Granite high or low in Silica?

• high
• low

If a rock is formed from lava, what will the grains be?

• coarse
• fine

Coarse or Fine?

• coarse
• fine

High or Low Silica?

• high
• low

How do Intrusive Igneous rocks cool?

• quickly
• slowly
• really fast

High or Low Silica?

• high
• low

Describe this rock

• Intrusive , High Silica
• Intrusive , Low Silica
• Extrusive , High Silica
• Intrusive , Low Silica

How are igneous rocks classified?

• origin, texture and mineral composition

• origin, color and texture

• texture, color, and mineral composition

• by their grains