Weathering
Rapid Changes
Landforms
Natural Resources
Soil
100
True or False: The Earth's surface is constantly changing.
True
100
What is an earthquake? Name some effects of an earthquake.
An earthquake is the shaking of the ground caused by the sudden release of energy in the Earth's crust. Some effects are landslides, volcanoes erupting, parts of the ground to break open and shift, buildings to crack or fall, or people hurt by a roadway or bridge buckling or collapsing.
100
What landform is the tallest part of the land?
Mountains
100
Materials that are found in nature and used to be living are _____.
natural resources
100
In class, you looked at soil samples with a hand lense. What ingredients did you find in the soil?
Weathered rock, sand, minerals, humus (decayed parts of once-living organisms), air, water, and decomposers, are all components of soil.
200
What is weathering?
the wearing down and breaking of rocks
200
Volcanoes are openings in the Earth's surface, in which lava flows. Name some effects of erupting volcanoes.
Volcanoes may cause land covered in liquid rock or ash, heat burning nearby forests and buildings, eruption may blow off a mountaintop, or releasing molten rocks, spewing gases, and ashes into our atmosphere, are all possible effects of a volcano.
200
The spaces between mountains are ______.
valleys
200
Three different ways to conserve resources are _____, _____, and _____. Give an example of each.
reduce, reuse, and recycle
200
How long do you think it takes Earth to make about 3 cm. of soil?
500-1,000 years
300
How does a rock break down?
Natural forces, such as wind, water, and ice, cause bits of the rock to break off.
300
If I were to describe the following effects of a natural disaster, what natural disaster would have occurred?
Changes in the Earth's surface are quick, as it slides down a hill. Dirt, rock, and mud, move down a hill caused by heavy rains, which loosens the soil, or caused by an earthquake, which shakes the soil.
300
Fresh waters on land are _____, _____, and _____.
rivers, lakes, and ponds
300
Name the materials from trees that are used to make various products.
branches – cut into logs to make lumber cellulose – gives rigidity and support bark – bottle corks, bulletin boards, inner cores of baseballs, drug to cure malaria, and more saps – paint thinner, chewing gum, medicine, rubber soled shoes, and more fruits and nuts – food for humans, artificial vanilla, inks, adhesives, and more
300
Humus is ______________________.
decayed parts of once-living things
400
You completed two labs that were examples of weathering: Gobstopper Lab and Sugar Cube Lab. How are these labs examples of weathering in real life?
Gobstoppers were worn away where the water touched them, which is an example of weathering. When adding water to the sugar cube, the water carried the small rocks, or sugar crystals, away to the soil.
400
Landslides are events that happen when rock and mud slides down a hill. Name some effects of landslides.
Dirt, rocks, and mud move down the hill and deposits in different places. Heavy rains loosen the rock and soil. Trees planted on hills, prevents landslides.
400
Deserts are _________________________________.
flat places on earth covered in rocks, stones, and sands.
400
Why are natural resources valuable?
We depend on them to live; we use them for things we need and want; other living things need them to survive.
400
How is soil formed?
the weathering of rock and the decomposition of plant and animal remains
500
How long do you think it takes Earth to make about 3 cm. of soil?
500 – 1,000 years
500
Changes that occur quickly are called ______.
rapid changes
500
Flat places covered with grass are _____.
plains
500
Why is conserving natural resources important?
It saves natural resources for future generations; it keeps more natural areas from being mined or forests from being overcut; it keeps natural resources from ending up in landfills.
500
Which of the following is NOT one of the materials that make up soil? small pieces of rock seeds humus air
seeds
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