Rocks and Minerals
A rock is a non-living material made up of different types of?
Minerals
What is geology?
The study of the earth.
The color of the powder left when the mineral is rubbed on a rough surface is called?
Streak.
The way mineral reflects light from its surface is called?
Lustre.
A measure of a minerals resistance to scratching is called.
Hardness.
What is a mineral?
Minerals are a pure and made of the same substance throughout.
What is the Earth's crust made up of?
rock
What are the 3 different types of rocks?
igneous, sedimentary and metamorphic
There are two types of lustre _____________ and ________________.
metallic and non-metalic
A minerals that is rare, beautiful, usually transparent, and glitters or shines in the light is called?
Gem.
What do geologists do?
Geologists are scientists who study the Earth and everything that makes it up (e.g., rocks and minerals, landforms, fossils etc).
Which minerals is the most resistant to scratching?
Diamond.
Which mineral is the least resistant to scratching?
Talc.
Name three degrees to which light can pass through a mineral.
Transparent, translucent, opaque.
Which mineral is the pencil core made up of?
Graphite.
Which mineral is the baby powder made up of?
Talc.
The rock cycle is the continuous process that forms, alters and reforms rocks.
What is the Earth's crust made up of?
rock.
Name two examples of how we use rocks and minerals in our everyday lives.
Answers will vary.
What is the difference between a rock and a mineral?
Rocks are made up of 2 or more minerals. Minerals are made up of the same substance throughout.
List at least 4 properties of minerals.
Color, streak, lustre, magnetism, transparency and hardness.
How is igneous rock formed?
Igneous rocks have formed through the cooling and hardening of lava and magma.
How are sedimentary rocks formed?
Sedimentary rocks are formed from other pieces of existing rocks that get compacted tightly and form a rock.
Name one pro (advantage) and one con (disadvantage) of mining.
Answers will vary.