Types of Rocks
You can find fossils in these
Sedimentary Rocks
How old is the Earth?
4.6 Billion years
True or False — Elements are matter formed by multiple types of atoms?
False
Elements are matter formed by only one type of atom
How are Igneous rocks formed?
Igneous rocks are formed when lava cools down and solidifies into rock
According to the Rock Cycle, how does sedimentation become Sedimentary rock?
Compaction and cementation
These form from volcanoes
Igneous Rocks
What force brought all of the asteroids and space dust together to form the Earth?
Gravity
True or False — Rocks are formed by a combination of minerals
True
How are volcanic rocks formed?
Volcanic rocks are formed when lava rapidly cools down in contact with air and water
According to the Rock Cycle, how does Sedimentary rock become Metamorphic rock?
Burial, high temperatures and pressures
These are made of tiny pieces of other rocks that are squeezed together
Sedimentary Rocks
When the Earth was young, was it solid or liquid?
Liquid
True or False — The three types of rocks are Igneous, Metamorphosis, and Sedimentary
False
Igneous, Metamorphic, Sedimentary
What makes volcanic rock different from Igneous rock?
Volcanic rocks form from contact with air and water, while Igneous rocks just form by cooling lava
According to the Rock Cycle, where does magma come from?
Molten crust and mantle
These can be made of the other two types of rocks
Metamorphic Rocks
How did Earth develop water?
The asteroids that hit it contained water
True or False — Minerals are matter formed by a combination of elements
True
What is the difference between Volcanic rocks and Plutonic rocks?
Volcanic rocks cool quickly, Plutonic rocks cool slowly
According to the Rock Cycle, how does Igneous rock become sediment?
Slow uplift to the surface, weathering and erosion, transport and deposition
Granite changes into Gneiss, what type of rock has it become?
Metamorphic Rocks
Name one of the elements from the asteroids that hit Earth
Iron (Fe)
Oxygen (O)
Magnesium (Mg)
Sulfur (S)
Nickel (Ni)
Calcium (Ca)
Aluminum (Al)
True or False — Limestone is an example of a Sedimentary rock
True
How do plutonic rocks form?
When magma cools and solidifies slowly beneath the Earth's surface
According to the Rock Cycle, how does magma become Igneous Rock?
It crystallizes