Rocks
How many types of are rocks are there?
3
This layer is only 1% of Earth's volume, it is very hot, and made from sold metal.
The core
What are rocks made of?
Why is soil important?
We need it in order to have life on Earth - to grow food, to grow trees so that we can breath, to hold water, etc.
The hardest mineral is a ....
diamond
sedimentary rock
The thinnest layer on Earth that life thrives on.
The crust
What is one test we did on our rocks and minerals in class and what were we looking for?
Colour - comparing colours and recording them
Lustre - how shiny the rock is/reflective
Magnetic (may have iron, cobalt, or nickel) - does it contain certain minerals?
Vinegar acid test - if there is fizz, it tells us that certain minerals are present
Hardness - how hard it is
Streak test - whether it gives off a colour when scrapped on a white tile
Texture - how it feels
How are rocks and soil connected?
Broken down rocks become a part of soil.
The softest mineral is...
talc
What are the names of the different types of rocks?
Igneous, sedimentary, and metamorphic
The largest layer of the Earth made of a hot rocky substance that flows.
The mantle
What can you tell me about minerals. List 2 things you know
Minerals are made of only one substance
Don't all look the same
Have different shapes, colours and sizes
Some are shiny and reflect light, others don't
quartz/agate are examples
make up rocks
What is in healthy soil?
organic matter, air, water, and rocks
When you do an acid test you put ______ on a rock or mineral and look for bubbles and fizzing.
vinegar
metamorphic rock
This layer is liquid (lava) and creates Earth's magnetism.
The outer core
They always form the same shapes
No. Earth's Soil is made up of layers and each layer looks different.
When identifying a rock, what can you look at?
Colour
Lustre/shininess
Magnetic (may have iron, cobalt, or nickel)
calcium carbonate
Hardness
Streak test (does it leave a mark?)
Texture
This rock is formed from lava. It is called...
igneous rock
List the Earth's layers from the centre of the Earth outwards.
core, outer core, mantel, and crust
floors, buildings, tile, furniture, pavement, counters, fuel, chalk, statues, blackboards, walls, etc.
What is the difference between weathering and erosion?
weathering is the breaking down of rocks and erosion is the movement of rocks from one place to another.
What are two things geologists study?
study materials, features, and structures that make up the earth
study the history of all life on earth and changes over time
study planets, asteroids and comets
study natural disasters and help prevent them
study fossils
study rocks, minerals and soil
help builders make decisions about tunnels and dams