Weathering
when rocks are broken down.
Erosion is ______________.
when sediments and rocks are moved.
A glacier is _____________.
A slow-moving piece of ice
Rain and plants cause rocks to __________.
break
Which Rock Layer has the Oldest Fossils?
Oldest Layer- A
What caused this rock to crack?
A plant
Name 3 things in nature that move rocks.
Wind, water, glaciers, rivers, rain
A valley is a _____ area of land.
low
Rocks are made of _________________.
minerals
Which rock layer has the Youngest fossils?
Youngest Layer- Rock Layer F
What causes rocks to EXPAND?
Frozen water or ice.
As glaciers move, they __________ sediments to another location.
carry or move
A ____________ forms valleys and canyons.
river or glacier
What holds land in place the most?
a) grass b) trees c) rocks d) sand
b) the roots of trees
True or False- Rock Layers C and D are the same age.
False. Rock Layer C is older.
Water creates soil and sand by ______________.
Breaking APART the rock.
Valleys are created by _________ water.
moving
As a glacier moves, sand and dirt stick to it like _________.
glue.
Water freezing inside of a rock is an example of ______________________.
Weathering
Which Rock Layer is Older- E or B? Why?
B is older than E because it is buried deeper.
Which CAN NOT break a rock?
a) Humans b) Animals c) Sun d) Wind
c) Sun
Name 1 thing that can stop water from flowing down a river or stream.
A beaver building a dam, roads being built, new houses or buildings,
Without an _______, a river would not be able to flow down a canyon.
incline
What causes these rocks to bend?
1) Wind 2) Water 3) Heat/Pressure 4) Sun
3) Heat and pressure coming from a volcano can cause a rock to bend.
If Layer E completely eroded, or was moved to another area, what would happen?
The information on the rock layer would be missing.