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19 Cards in this Set

  • Front
  • Back
CO2
Carbon Dioxide

It enters the atmosphere when fossil fuels (coal, oil, gas) are burned.

We exhale this and plants take it in.
H2O
Water

2 Hydrogen + 1 Oxygen

Over 3/4ths of the planet's surface is covered by this.
O
Oxygen

Our air and earth's crust
Ca
Calcium

Found in bones, shells, milk, and Earth's crust
NaCl
Sodium Chloride (salt)

1 Sodium + 1 Chlorine

Used on food and in our pools
Al
Aluminum

Used to make airplane parts & found in earth's crust
Cl
Chlorine

Combines with sodium to make salt found in pools
U
Uranium

Used in nuclear energy
Si
Silicon

Found in rocks, sand, and soil of earth's crust
He
Helium

Found in party balloons and our sun
CH4
Methane Gas

1 Carbon + 4 Hydrogen

Used as fuel
Used as the main component in natural gas
N
Nitrogen

Found in muscle-building protein and our atmosphere
Na
Sodium

Salt we use on food, found in ocean water and earth's crust
H
Hydrogen

Found in starts and our sun
C
Carbon

All living things and helps tell age of rocks and fossils
Fe
Iron

Used in steel structures, earth's crust and core
NH3
Ammonia

1 Nitrogen + 3 Hydrogen

A colorless, sticky gas

It's used in fertilizers for growing plants, but it can also be in the atmosphere of planets.
Ni
Nickel

Found in coins and make up earth's core
Mg
Magnesium

Found in plants and rocks