Rocks and Minerals
Do we classify minerals according to their biological composition?
No
What is limestone?
A hard rock formed of calcium carbonate and fossils.
What are pure minerals called?
Elements
Which rock is used to make cement for roads and buildings?
Limestone
What are rocks?
Clusters of minerals and other inorganic materials
What is magma?
Magma is the hot liquid contained inside volcanoes.
Quartz is a type of _________.
mineral
What is quartz used in? (helps keep accurate time)
watches
What are minerals?
Structured crystals that have specific chemical components
What is sedimentary rock composed of?
layers of other rock fragments, or animal and plant fossils
What are rubies used in and what category are they in?
Rubies are used in jewelry and belong o the category of oxides.
What are diamonds and what are they used to make?
Diamonds are hard, transparent carbon minerals used to make expensive jewelry.
Are fossils minerals?
No
How is igneous rock formed?
When molten lava cools and hardens, igneous rock forms.
What are oxides?
Oxides are mixtures of metals and oxygen that vary in hardness and color.
What is marble and what is it used for?
Marble is a hard, metamorphic rock used to make countertops and floors.
How are metamorphic rocks formed?
Metamorphic rocks are formed when igneous and sedimentary rocks are pushed down by other layers of rock from above.
What is lava?
Lava is what we call magma when it is outside a volcano.
Minerals have a unique ________ __________.
chemical composition
Talc is a soft mineral and solid _______ used to make _______ ________.
Talc is a soft mineral and solid lubricant used to make talcum powder.