Earth's Creation
Where did the earth,with its water and dry land, come from?
God created the earth and everything in it.
What is happening to plants and animals when we say that they are decaying?
When plants and animals decay, they break apart or rot.
Define weathering.
The breaking down of rocks into smaller pieces is called weathering.
Define rock.
Rocks are hard pieces of the earth's surface.
Define mineral.
Minerals are solid materials in nature that were never alive.
Where in the Bible are we told about God's creation?
Genesis 1
What is important about topsoil?
Topsoil is the layer that contains the most humus. Plants grow in this layer.
Define erosion.
Water and wind moving rocks and soil is called erosion.
Name the three classifications of rock.
1. sedimentary
2. igneous
3. metamorphic
What is the purpose of a scratch test?
The purpose of a scratch test is to find out how hard a mineral is.
Why is the land a wonderful gift from God?
It provides many of the things we need to live.
What is humus?
Humus is the remains of living things that have died and decayed. It is the soft dark part of the soil. It has many nutrients that plants need to survive and grow.
Define landslide.
A landslide is the rapid downhill movement of a large amount of rocks and soil.
What is sedimentary rock?
Bonus for 50 points! Name one kind of sedimentary rock that we have discussed.
Sedimentary rock forms when layers of sediment are pressed together and harden.
Sedimentary rocks include limestone, sandstone, and shale.
What is pyrite?
Pyrite is fools gold.
Why is the land today different from the land God created?
Because of sin, God covered the whole earth with a great flood
Name 3 of the 4 things that is are in soil.
Soil contains
(1) bits of broken rock
(2) water
(3) air
(4) humus
What does conserve mean?
To conserve means to take care of and use wisely natural resources.
What is igneous rock?
Bonus for 50 points: name one kind of igneous rock that we have discussed.
Igneous rock forms when melted rock comes from deep in the earth (like lava from a volcano) and then cools.
Types of igneous rock include obsidian and granite.
What is the difference between precious minerals and common minerals?
Precious minerals are hard to find. Common minerals are easier to find.
In what ways did the flood change things on earth?
The moving water from the flood changed mountains, valleys, and rocks.
What are the three layers of soil?
Topsoil
Subsoil
Bedrock
Name 3 of the 4 things that can cause the weathering of rocks.
1. flowing water
2. wind
3. ice
4. plants
What is metamorphic rock?
Bonus for 50 points: name one type of metamorphic rock.
Metamorphic rock forms when igneous or sedimentary rock are changed by great heat and pressure.
Types of metamorphic rock include marble, slate, and gneiss.
Name the 3 properties we have talked about that scientists use to help tell minerals apart.
1. crystal shape
2. color
3. streak (hardness)