Blue
How many types of rocks are there?
3
What are the names of the rocks?
There are Igneous, sedimentary and metamorphic rocks.
_____ has the biggest impact on erosion?
Humans!
What is a mineral?
Is a chemical compound or element found in Earth.
What are two very valuable minerals?
Diamonds and gold!
What is a rock?
A group of minerals that are lumped or grown together.
Bananas are an example of ______ mineral.
Potassium.
What is the name of the layer of the rock found beneath the crust?
It is called the Mantle.
what is an example of natural erosion?
Wind and water are natural causes of erosion.
Our bodies need _____ to stay heathy and function right.
minerals
What is the melted rock around the mantle called?
It is called magma.
How is sedimentary rocks formed?
When mud, sand and pebbles are compressed over a long period of time rocks are formed
How is an igneous rocked formed?
When molten magma comes out of a volcano and later cools down and hardens
How is metamorphic rocks formed?
When igneous and sedimentary rocks are exposed to high tempretures and pressure for a long time they turn into metamorphic rocks.
Name two precious metals?
Silver, gold copper and aluminium.
What causes a mineral to FIZZ during an acid test?
It fizzes because carbon dioxide gas is released as the mineral dissolves.
What does the rock cycle tell us?
How rocks are formed, how they break apart and reform into other parts.
When is the Earth's crust visible?
We can see it near rock cliffs near coast lines and walls of the canyons
What causes erosion?
natural and human impact
What is the hardest MINERAL on Earth?
it is a diamond.
What are the three layers of the Earth?
Crust, mantle and core
How can the farming process harm the Earth?
When we use one place to farm a crop for a long time, we strip the soil of its’ minerals so plants can no longer grow. It also loosens the topsoil so that it gets washed away more easily when it rains.
How does overmining harm the Earth?
Rocks & Minerals are “non-renewable” resources! Over mining weakens the ground above the mine and can make it more likely to erode away with wind, rain, and ice.
Define deforestation?
Deforestation happens when humans cut down large areas of forests/trees/greenspace in order to make space for buildings and roads
How are minerals categorized?
The three categories are luster, colour and hardness.