Science
Acid rain
When rain is acidic due to pollution. Acid rain. Acid rain is rainwater that has absorbed higher levels of pollutants, like sulfur dioxide and nitrogen oxides, making it more acidic.
Conservation
The careful management and use of resources. Conservation. Conservation in science means protecting and preserving the Earth's natural resources for future generations.
Fossil fuel
An energy source made of the remains of organisms that lived long ago, like coal or oil. Fossil fuel is a type of energy resource formed from ancient plants and animals buried over millions of years.
Nonrenewable resource
A natural resource that is consumed faster than it can be created nonrenewable resource. Nonrenewable resources are resources like coal and oil that we use up quicker than nature can replace them.
Ozone
A molecule composed of three oxygen atoms, it blocks UV rays. Ozone is a gas in the Earth's atmosphere that helps protect us from the sun's harmful ultraviolet radiation.
Pollution
Adding harmful substances to the land, water or air. Pollution. Pollution is when harmful materials contaminate the environment, making it unsafe or unhealthy for living things.
Renewable resource
A resource that is replaced by nature more quickly than it is consumed. Renewable resource. A renewable resource is something like sunlight or wind, which can be used repeatedly without running out.
