The Spheres of the Earth
TRUE OR FALSE? The Earth is an enormous triangle made of four spheres.
FALSE! The Earth is a sphere.
TRUE OR FALSE? The wind erodes rocks and carries materials from the soil.
TRUE!
TRUE OR FALSE? Rocks are materials that make up the biosphere.
FALSE! Rocks are materials that make up the GEOSPHERE.
TRUE OR FALSE? Minerals are natural materials that make up the hydrosphere.
FALSE! Minerals are natural materials that make up ROCKS.
TRUE OR FALSE? Quarries are open-pit mines.
TRUE!
Name the THREE layers of the Earth.
The crust, mantle, and core.
What is erosion?
When materials from rocks and soil are removed by water and wind.
What are the THREE types of rocks?
Igneous, sedimentary, and metamorphic.
What mineral is the hardest?
Diamond
Are rocks and minerals renewable resources or renewable resources?
Non-renewable resources.
Name the FOUR spheres of the Earth.
The geosphere, the hydrosphere, the biosphere, and the atmosphere.
Materials from rocks and soil are removed by TWO agents: _______ and _______.
water and wind
magma
Some minerals have _________ shapes. Others have ________ shapes.
Some minerals have regular shapes. Others have irregular shapes.
Almost all electronic components like computers or phones are made from _________.
Minerals
Which layer of earth is the thinnest?
The crust is the thinnest layer of the Earth
What is soil made of? There are FOUR things.
1. Air
2. Water
3. Living things
4. Small pieces of rock
What is an example of a sedimentary rock?
Clay, limestone, coal, petroleum.
What are the FIVE properties of minerals?
1. Colour
2. Density
3. Shape
4. Lustre
5. Hardness
Name THREE uses of minerals.
1. to obtain metals
2. to make jewelry
3. to make electronic components
4. to obtain other substances
The inside of the Earth is very hot. This internal energy can cause changes in the landforms of the Earth's surface. What are TWO changes it can cause?
1. Volcanoes,
2. Mountain ranges
3. Depressions.
How many years does it take fertile soil to form?
Thousands of years!!
How are metamorphic rocks formed?
Metamorphic rocks are formed from OTHER ROCKS and were transformed due to HEAT OR PRESSURE.
How do we measure the density of a mineral?
Density is measured in grams per cubic centimeter.
How do we use rocks in construction?
We use rocks to make bricks and tiles OR we use rocks to make buildings.