TEKS 7.6A: organic compounds contain

carbon and other elements such as

hydrogen, oxygen, phosphorus, nitrogen

or sulfur.

What are elements?

What are compounds?

Agree on definitions for

each word.

Elements are substances that cannot be broken

down into any other substance by chemical or

physical means.

The Periodic Table organizes the elements based

on their physical and chemical properties.

An element can be made of a

single atom or 2 of the same

atoms joined in a molecule

(ex. He or C)

When elements are combined they make compounds.

A compound is a substance made of 2 or more different elements that are chemically bound and set together in a set ratio.

Salt

NaCl

Glucose

C6H12O6

Iron

Fe

Carbon Dioxide

CO2

Water

H2O

Oxygen

O2

Fertilizer

Ca2(PO4)2

Formulas show what elements and how many atoms of each element are involved in the compound.

H2O (water) 2- Hydrogen and 1- Oxygen

NaCl (table salt) 1- Sodium and 1 Chlorine

CO2 (carbon dioxide) 1- Carbon and 2 Oxygen

NH3 (ammonia) 1 Nitrogen and 3 Hydrogen

2H2 + O2 2 H2O

Reactants Product

2 hydrogen molecules combined with 1

oxygen molecule yields 2 water molecules.

Methane - CH4

Formaldehyde - CH2O

Ethanol - C2H6O

Salicylic acid (used for acne) - C7H6O3

Histamine - C5H9N3

Contain the elements Carbon and Hydrogen.

are made from plant or animal products

They can also include other elements such as oxygen, phosphorus, nitrogen, sulfur

All living things are organic compounds

Organic compounds are formed by producers that use carbon dioxide from the air and water from the soil to make food

Organisms also use nitrogen, phosphorus and

sulfur to form cells and tissues.

How can I remember all of these elements?

SPONCH!

Living organisms

obtain elements

needed to make

organic compounds

They get these

compounds from:

The atmosphere (air)

Water from the soil

Consuming other

organisms

Organic compounds are formed by producers

that use carbon dioxide from the air and

water from the soil to make food.

Latin prefix “in-” means “not, lacking, without”

Compounds that do not contain Carbon (bonded to a hydrogen)

Is carbon dioxide (CO2 ) organic or inorganic? Why?

Inorganic compounds are produced by non-living natural processes or by human intervention in the laboratory

Salt

NaCl

Glucose

C6H12O6

Carbon Dioxide

CO2

Water

H2O

Caffeine

C8H10N4O5

Fertilizer

Ca2(PO4)2

Chlorophyll

C55H72MgN4O5

The phrase carbon cycle is used to describe how

the carbon in the environment flows among

living beings, inorganic matter and the

atmosphere.

The path that carbon follows as it cycles through

the air, earth, plants, animals and fossil fuels

The carbon cycle is basically a two step process

involving photosynthesis and respiration.

Fill in this page, then glue it in after your notes

Nitrogen travels with the help of bacteria, water,

lightning, plants, and animals.

You will travel as nitrogen! See the nitrogen reservoir

signs around the room?

These are the places to which nitrogen can

travel. These places are called reservoirs.

To travel through the nitrogen cycle (different stations

around the room) based on dice rolls.

You will each carry a nitrogen passport with them and

stamp it each time they get to a nitrogen reservoir

station.

Then toss the die at the reservoir to determine their

next destination.

Don’t forget to note in the passport how they get from

one place to another based the roll of the die.

Discussion

After everyone has filled their passport

worksheet, let’s discuss as a class:

How many stops can you make on your trip?

Will your journey ever end?

Was everyone’s journey the same? Why not?

What would happen if a farmer used too

much fertilizer? (In this game, that would

mean that everyone starts from the fertilizer

station at the same time.)

What would happen if we burnt too many

fossil fuels?