ES04 and ES05 Erosion and Water Test

The height of a mountain can be told by measuring the height above ________ ________ .
1. flat land
2. ocean bottom
3. sea level
4. mountain top
Weathering breaks rocks into smaller ________ and erosion is the movement.
1. pieces
2. organic
3. erosion
4. plants
______________ is the mixture of plants, animals and rock combined over many years.
1. Soil
2. Rock
3. Inorganic
4. Organic
Rocks are made into smaller rocks but stay the same kind in ________ weathering.
1. chemical
2. mechanical
3. erosion
4. mechanical and chemical
Three kinds of mechanical weathering are ice wedging , abrasion and plant _________ .
1. roots
2. grabbers
3. leaves
4. stems
Chemical weathering is different than mechanical because ___________ materials are made.
1. the same color
2. a larger amount
3. new
4. the same
Soil is made of organic, or ________ and non organic or non living materials.
1. living
2. dead
3. clay
4. rock
In the top layers of soil, ________ break up materials and make it rich.
1. composers
2. weathering
3. decomposers
4. rocks
Soil horizons are labeled, from the surface, as ___ , ___ and ___.
1. T M B
2. A B C
3. Top Middle Bedrock
4. X Y Z
Weathering breaks rocks into ________ pieces and erosion is the movement.
1. larger
2. smaller
3. organic
4. plants
How are boulders and clay related?
1. they are all round
2. they are both organic
3. they roll uphill
4. they are made of the same materials
Water gets into cracks and freezes splitting the rock. This is ________
1. ice freezing procedure
2. ridiculous
3. water wedging
4. ice wedging
The formation on the ceiling of a cave is a _______________
1. rock
2. stalactite
3. stalagmite
4. mineral
Most of Earth’s fresh water is ________ and not available for use.
1. frozen
2. held in rocks
3. liquid
4. in the atmosphere
________ percent of the Earth’s water is salt water in the oceans.
1. 79
2. 93
3. 3
4. 97
Why do we need to protect our fresh water supply?
1. We do not need to protect it.
2. We can always get more
3. It will make us sick to drink polluted water.
4. It is a small part of the water on the planet
Where is most of the fresh water found?
1. oceans
2. ponds
3. frozen
4. in the ocean
We use fresh water most in the following ways: recreation, drinking and ________ .
1. mines
2. highways
3. factories
4. farming
A stream or river begins at the ________ . It may have many separate ones.
1. mouth
2. source
3. bank
4. erosion
What is the river’s load.
1. the amount of salt water in it.
2. what is not carried downstream
3. material that is moved downstream
4. 34 pounds
Smaller streams that feed into other streams are ________ , they contribute.
1. mouth
2. field stream
3. tributary
4. esturary
Why are watersheds so important?
1. protect water
2. hold soil
3. All the answers combined
4. slow run off
Land that drains into a river is a ________ , and a ________ happens when there is too much water there.
1. stream - flood
2. watershead - river
3. flood - stream
4. watershead - flood
Why are estuaries so important?
1. water is cleaned
2. industry is found there
3. pollution is removed there
4. fish lay eggs there
A(n) ________ is an area of a river where salt water and fresh water mix.
1. esturary
2. ocean
3. stream
4. rivulet

ES04 and ES05 Erosion and Water Test

Select the best answer.