Science Chapter 3 Study Guide Flashcards
The remains of living things that have died and decay become ___
Humus
The breaking down of rocks into smaller pieces is called ___
weathering
Rocks are made of one or more _____
Minerals
A natural resource that is made up of small bits of broker rock, air spaces, water and humus is _____
Soil
The remains of livng things that has died and was buried quickly is a ______
Fossil
The layer of soil that contains humus and is where plants grow is the ____
Topsoil
The movement of rocks and soil is called ____
Erosion
Some properties that can be used to identify a mineral are crystal shape, color, streak and ____
Hardness
Gems are minerals that are hard to find. They are called ____ minerals
Precious
Rock that forms when melted rock cools is ____ rock
igneous
Table salt is a mineral that is easy to find. It is called a ____ mineral
Common
True or False
Erosion is caused by wind and flowing water
True
True or False
Scientists classify rocks by how they are formed.
True
True or False
The Bible tells us in Genesis 1 that God created the earth with dry land and seas
True
True or False
Understanding the properties of minerals helps people know how to use them
True
