Elevate Science Topic 2 Science Review

Front

What are greenhouse gases?

Back

Greenhouse gases are gases in the Earth's atmosphere that trap heat, contributing to the greenhouse effect. Common examples include carbon dioxide, methane, and nitrous oxide.

Front

What is the energy transformation that occurs when a car uses fuel to move?

Back

The energy transformation is from chemical energy (stored in the fuel) to kinetic energy (the energy of motion).

Front

What is coal and how is it formed?

Back

Coal is a hard, black substance formed from the remains of plants that lived millions of years ago, transformed through chemical changes under heat and pressure over time.

Front

What are some harmful effects of obtaining fuel?

Back

Harmful effects of obtaining fuel can include air pollution, habitat destruction, and contribution to climate change.

Front

What is combustion?

Back

Combustion is the process of burning fuel to produce heat and light.

Front

What role do fossil fuels play in energy production?

Back

Fossil fuels, such as coal, oil, and natural gas, are primary sources of energy for electricity generation, transportation, and heating.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

How do human activities contribute to air pollution?

Back

Human activities such as burning fossil fuels, industrial processes, and deforestation release pollutants into the air, contributing to air quality degradation.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, which depends on the mass and speed of the object.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, which can be released during a chemical reaction.