energy from plant and animal waste

Why aren't American's roofs crammed with more solar panels?

They have expensive start-up costs

What are the 3 main fossil fuels?

Electricity, Gasoline, Petroleum

Coal, Oil, Non-renewable Resources

The formation of fossil fuels is a process that takes millions of years and starts with energy from the sun. The sun contributes to the formation of fossil fuels by

giving energy to the living things that become fossil fuels

heating up the Earth's core where fossil fuels form

generating winds so humans use less fossil fuels

giving off heat, similar to burning fossil fuels

What is a major advantage that alternate energy has over fossil fuels?

alternate energy reduces the amount of carbon dioxide ejected into the atmosphere

alternate energy does not produce radioactive waste

alternate energy is more efficient than fossil fuels

alternate energy increases the amount of sulfur dioxide ejected into the atmosphere

Why are fossil fuels more widely used than solar energy?

The sun's energy can never be harnessed

Which methods of generating electricity does NOT use alternative energy resources?

Solar panels taking in light energy

Drilling wells to reach hot rocks deep inside the earth

Why is the Sun considered the ultimate energy source?

The Sun provides energy for the water cycle and plants.

The Sun is the center of our solar system.

The Sun is limited in the amount of energy released daily.

The Sun rises and sets each day as seen from Earth.

An energy company wants to build a hydroelectric power plant. Which of these characteristics of an area is most important to the development of a hydroelectric power plant?

The area has a river that flows rapidly from nearby mountains through a valley

The area has a cool, rainy climate.

The area is located in a valley with very little wind and frequent heavy fog.

The area has no geysers or hot springs.

How do plants weather rocks?

when roots grow into cracks of rocks and expand the rock

when the leaves dissolve the rocks

when the plant moves water from the roots to the leaves

How is mechanical weathering different from chemical weathering?

Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.

Chemical weathering happens over much shorter time frame than mechanical weathering.

Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.

Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.

The diagrams show a natural process that weathers rock. Which statement best explains why this process results in weathering ?

water boils and pushes against the rocks

the mass of water increases when it freezes

water dissolves most types of rock

What is mechanical weathering?

Process through which rocks are physically broken into smaller pieces.

Rocks are broken down through chemical changes.

Rocks are worn away from acid in plant roots.

Rocks broken down by machinery.

As you were climbing a mountain, you noticed that rocks were crumbling below your feet and moving down the mountain. What 2 processes did you observe?

Abrasion and chemical weathering

Your teacher filled a box with sand. She put a fan at one end and turned the fan on. The sand was blown to the opposite side of the box and collected at that side. What processes was the teacher demonstrating?

Chemical and mechanical weathering

How might a weathered mountain appear different than an unweathered mountain?

Weathered mountain would be rounder and less jagged.

Weathered mountain would be taller.

Weathered mountain would be more jagged and less rounded.

Weathered mountain would have no trees.

Over long periods of time, deposition may change the Earth’s surface by _____.

breaking down large rocks into smaller ones.

A cliff formed near the ocean. Which statement best describes how this cliff formed?

Plant roots pushed away the rock.

Which of these is an example of erosion?

Wind blowing away sediment to a new place on the mountain.

Rain breaking down rocks on a mountain into smaller pieces.

Semester 1 Final Exam Review

Authored by Aleshia Ingram

Science

6th Grade

NGSS covered

Used 53+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is a fossil fuel?

Wind

Coal

Solar

Biomass

MULTIPLE CHOICE QUESTION

Energy that comes from harnessing the movement of the air

Energy that comes from the Sun

A source of renewable energy, such as solar, wind, or geothermal energy

Fuel from plant material

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Semester 1 Final Exam Review

Which of the following is a fossil fuel?

Hydroelectric power produces electricity using.....

Energy from the sun is known as.........

Fossil fuels are classified as nonrenewable because they.......

What are two advantages of geothermal energy?

Wind, geothermal, and solar energy are all what type of energy resources?

An Alternative Energy Resource is...

What is biomass?

Why aren't American's roofs crammed with more solar panels?

What are the 3 main fossil fuels?

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