Atmospheric Pollutants Crossword Puzzle

Download and print this Atmospheric Pollutants crossword puzzle. Use a pencil or pen to complete the puzzle by filling in the blanks. The completed answers are included, so you can easily check your progress.

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HYDROGEN: Hydrocarbons are made up of carbon and __________________.
SULFUR: As well as hydrocarbons, some fuels contain this element.
COMBUSTION: The reaction that happens when a fuel is burned. Can be complete or incomplete.
WATER: A product made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
CARBON DIOXIDE: A gas made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
INCOMPLETE: The type of combustion that happens when there is not enough oxygen.
CARBON MONOXIDE: A toxic gas that is produced when hydrocarbons undergo incomplete combustion (burn in not enough oxygen)
GREENHOUSE: A type of gas. Water, carbon dioxide and methane are all examples.
RISE: Climate change can cause sea levels to do this.
PARTICULATES: Tiny particles (soot) produced when fuels undergo incomplete combustion.
COLOURLESS: What carbon monoxide gas looks like (and why it is so difficult to detect)
DIMMING: Particulates can causes global _____________________.
BREATHING: Particulates can causes problems with this important human process.
CLIMATE CHANGE: Greenhouse gases like water vapour and carbon dioxide cause this.
DIOXIDE: When sulfur in fuels reacts with oxygen in the air, sulfur ________________ is made.
AIR: Where the oxygen in sulfur dioxide comes from.
FUEL: Where the sulfur in sulfur dioxide comes from.
ACID RAIN: A type of weather caused by sulfur dioxide.
BUILDINGS: These can be damaged by acid rain.
NITROGEN: Oxides of _______________ are formed when oxygen and nitrogen in the air react at high temperatures in car engines.
FISH: A type of animal that can be harmed by acid rain falling into lakes and rivers.

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QUESTIONS LIST:

hydrogen: hydrocarbons are made up of carbon and _ .
sulfur: as well as hydrocarbons, some fuels contain this element.
combustion: the reaction that happens when a fuel is burned. can be complete or incomplete.
water: a product made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
carbon dioxide: a gas made when hydrocarbons in fossil fuels are burned and react with lots of oxygen in the air (complete combustion)
incomplete: the type of combustion that happens when there is not enough oxygen.
carbon monoxide: a toxic gas that is produced when hydrocarbons undergo incomplete combustion (burn in not enough oxygen)
greenhouse: a type of gas. water, carbon dioxide and methane are all examples.
rise: climate change can cause sea levels to do this.
particulates: tiny particles (soot) produced when fuels undergo incomplete combustion.
colourless: what carbon monoxide gas looks like (and why it is so difficult to detect)
dimming: particulates can causes global _ .
breathing: particulates can causes problems with this important human process.
climate change: greenhouse gases like water vapour and carbon dioxide cause this.
dioxide: when sulfur in fuels reacts with oxygen in the air, sulfur _ is made.
air: where the oxygen in sulfur dioxide comes from.
fuel: where the sulfur in sulfur dioxide comes from.
acid rain: a type of weather caused by sulfur dioxide.
buildings: these can be damaged by acid rain.
nitrogen: oxides of _ are formed when oxygen and nitrogen in the air react at high temperatures in car engines.
fish: a type of animal that can be harmed by acid rain falling into lakes and rivers.