Chemistry Chemistry Measures UpMeasures Up

with your name here

What is Chemistry?

Chemistry is … the study of the composition and properties of matter.

What is matter?

Matter is … anything that has mass and takes up space.

Matter surrounds us in the form of solids, liquids, and gases.

All matter, regardless of its size, shape, or color, is made of particles that are too small to be seen by the unaided eye.

AtomsAtoms

ATOM-the basic unit of matter. ATOM-the basic unit of matter.

An atom is made up of 3 parts…An atom is made up of 3 parts…

Protron (+ charge)Protron (+ charge) Neutron (no charge)Neutron (no charge) Electron (- charge)Electron (- charge)

ElementsElements

ELEMENT-the specific name of an atom.

An element is distinguished by its atomic number (the number of protons it has).

MoleculesMolecules MOLECULE- made up of two or more atoms MOLECULE- made up of two or more atoms

that are held together through that are held together through bondsbonds. .

Bonds are attractions between atoms that tightly hold the molecule together.

A Simple MoleculeA Simple Molecule

Water (H20)

•2 hydrogen atoms•1 oxygen atom

Another Simple MoleculeAnother Simple Molecule

Ethane (C2H6)

•2 carbon atoms•4 hydrogen atoms

A Polymer… More ComplexA Polymer… More Complex

The polymer “polyethylene”consists of many ethane molecules.

What is a Polymer?What is a Polymer?

Polymers are made of many molecules Polymers are made of many molecules strung together to form really long chains.strung together to form really long chains.

Polymers can occur in Polymers can occur in nature or they can be nature or they can be man-made.man-made.

What is a polymer?What is a polymer?

These long polymer chains are formed by teeny tiny These long polymer chains are formed by teeny tiny molecules called molecules called monomersmonomers..

A single polymer molecule is made out of hundred of A single polymer molecule is made out of hundred of thousands (or even millions!) of monomers!thousands (or even millions!) of monomers!

Today we will…Today we will…

Measure ingredients in a formula.Measure ingredients in a formula.

Create a polymer.Create a polymer.

Convert fractions to decimals and percents.Convert fractions to decimals and percents.

Have fun with math and science!Have fun with math and science!

Ingredient: 

 

StandardUnits:

MetricUnits:

Fraction:

Fraction Estimate:

Decimal Estimate:

PercentEstimate:

Solution A 

         

Water  Glue Solution B 

 

Borax Water Total 

 

Standard Metric2 tsp 9.86 = _____

ml(1/3)=.375 cup

88.72 = _____ ml

(1/2) =.5 cup 118.29 = _____ ml

(2/3)=.667 cup

157.57 = _____ ml

Chemistry Measures Up! Data Sheet

89 ml

118 ml

.375 cup

10 ml

158 ml

375 ml375 ml

89 / 37589 / 375

118 / 375118 / 375

10 / 37510 / 375

158 / 375

375 / 375

.5 cup

2 tsp

.667 cup

EthaneEthane

First discovered in 1834.First discovered in 1834. A component of natural gas.A component of natural gas.

ButaneButane

Liquid formLiquid form Found in LPG bottles used in gas grillsFound in LPG bottles used in gas grills

ParaffinParaffin

Waxy solidWaxy solid Used in candles and has a low melting Used in candles and has a low melting

pointpoint

PolyethylenePolyethylene

SolidSolid This is everyday plastic—milk This is everyday plastic—milk

jugs, detergent bottles, or any jugs, detergent bottles, or any plasticplastic

Thank you !!!Thank you !!!