BIOGEOSPHERE
Bilingual Biology and Geology
I.E.S. "J.S.Elcano (Sanlúcar Bda.)
2. Minerals
The terrestrial crust is formed by different materials.
The most important ones are minerals and rocks.
- Minerals: They are substances that have to be:
- Solid at room temperature, that is to say, they can not be
liquids or gases.
- Inorganic, that is to say, they can not be formed by living
beings.
- Defined chemical composition, that is to say, they are
formed by one or more elements in a certain proportion
that we can express with a chemical formula.
- Natural origin, that is to say, they are not made up by
humans.
- Rocks: They are solid substances formed by the combination
of minerals.
READING ACTIVITIES
After reading the text, copy and answer the following questions into your notebook:
Remember: you must make complete sentences.
2.1. Look at the chart and indicate why these substances can not be
considered minerals.
|
Substance |
State (at room temperature) |
Inorganic |
Chemical composition |
Natural origin |
|
Water |
Liquid |
Yes |
H2O |
Yes |
|
Mercury |
Liquid |
Yes |
Hg |
Yes |
|
Bone |
Solid |
No |
Ca 3(PO4) 2 |
Yes |
|
Plastic |
Solid |
Yes |
Undefined |
No |
2.2. What is the difference between a mineral and a rock?
2.3. Listen and indicate what characteristic of minerals is
described:
a. Solid
b. Inorganic
c. Defined chemical composition
d. Natural origin
(Diccionario Ing-Esp)
(Juegos de vocabulario)
(Visual dictionary)
(Visual dictionary)
(Glosario de C. Naturales)
(Science audio-glossary)
(Science audio-glossary)
(Pronunciación)
(Enciclopedia de C. Naturales)
(Tabla periódica)
Eva Mª
López Rodríguez
Departamento
Biología y Geología
IES " J. S. Elcano"
Sanlúcar de Barrameda