warm up january 22 nd, 2014 1)what’s the difference between a non- renewable and a renewable...

Warm Up January 22nd, 2014

1) What’s the difference between a non-renewable and a renewable resource?

2) Name 3 kinds of energy your body uses and explain their uses.

3) What is the function of a catalyst?

4) What do hydroelectric and geothermal mean?

Greek and Latin Derivatives (III)

1) Geo Earth

2) Thermal Heat

3) Hydro Water

4) Sol Sun

5) Bio Life

Elephant Toothpaste Demo

• Time for a Demo!

Elephant Toothpaste Demo

• We mix some concentrated 40% H2O2 (hydrogen peroxide—from the hair salon)…

• with some dishwashing liquid…

• with some yeast.

• And we got water (H2O) & a whole bunch of oxygen gas (O2)

Here’s the elephant toothpaste chemical reaction.

• We mixed some concentrated 20% H2O2 (hydrogen peroxide—from the hair salon)…



• And we made water (H2O) & a whole bunch of oxygen gas (O2)

2H2O2 2H2O + O2 1 REACTANT 2 PRODUCTS

Elephant toothpaste chemical reaction.





2H2O2 2H2O + O2

But what were these

for?

1 REACTANT 2 PRODUCTS

Elephant toothpaste chemical reaction.





2H2O2 2H2O + O2 W

e do

n’t se

e

thes

e he

re?

1 REACTANT 2 PRODUCTS

The dishwashing liquid & yeast were CATALYSTS!





2H2O2 2H2O + O2

These were CATALYSTS!

CATALYSTS speed up chemical reactions without getting involved!





2H2O2 2H2O + O2

They

hel

ped

THIS

sta

rt.

BUT STAYED OUT OF THE REACTION!

Blocks 1 and 2

Blocks 3 and 4

ENERGY MAKES THE WORLD GO AROUND!

E = MC2

ENERGY MATTER

x (THE SPEED OF LIGHT)2

ENERGY IS MEASURED IN JOULES.• Like distance is measured in

ENERGY IS MEASURED IN JOULES.• Like distance is measured in meters

• Like mass is measured in

ENERGY IS MEASURED IN JOULES.• Like distance is measured in meters.

• Like mass is measured in grams.

• Like temperature is measured in

ENERGY IS MEASURED IN JOULES.• Like distance is measured in meters.

• Like mass is measured in grams.

• Like temperature is measured in degrees Celsius or Fahrenheit or KELVIN!

SO HOW MUCH IS 1 JOULE?

SO IMAGINE IF I DROPPED THIS TEXTBOOK ON THE FLOOR & BROKE APART EVERY SINGLE ATOM OF IT!

THE ENTIRE BOOK WAS CONVERTED TO ENERGY!

NO ASH, NO CINDERS, NOTHING LEFT (MATTER ENERGY)

LET’S BE EINSTEIN! • What’s the mass of your textbook (matter)?

• What’s the mass of your textbook (matter)?

• 2,200 grams or 2.2 kg (1000 grams = 1 kg)

E = MC2

E = 2.2 x (speed of light)2

How much energy is stored in your textbook?

So how fast is light? Try 300,000,000 m/s.



E = MC2

E = 2.2 x (300,000,000)2

How fast is light? Try 300,000,000 m/s.

So now just roll with your PEMDAS model.

HOW MUCH IS 2 X 1017 JOULES?



E = MC2

E = 2.2 x (90,000,000,000,000,000)

E = 1.98 x 1017 joules

E 2 x 1017 joules

E = 200,000,000,000,000,000 joules!

So now just roll with your PEMDAS model.

http://www.youtube.com/watch?v=R5_9Gi7w19Y



• We split a bunch of atoms that day for sure!

• This was not just a chemical reaction, this was a ATOMIC NUCLEUS reaction.

• 6.3 x 1016 joules

CASTLE/BRAVO WAS THE BIGGEST NUKE WE EVER BLEW UP ON EARTH.

THAT’S RIGHT, YOUR TEXTBOOK AS ALMOST 3 TIMES THE POTENTIAL ENERGY OF THE BIGGEST NUKE EVER DETONATED ON EARTH.

2 x 1017 joules 6.3 x 1016 joules

LET’S COMPARE OUR STUFF TO THINGS THAT CAN READILY EXPLODE…Explosive substance Energy released in joules

Energy of a lightning bolt 5 x 108 joules or500,000,000 joules

Energy used to bring down WTCs on 9/11 1.2 x 109 joules or 1,200,000,000 joules

First atomic bomb dropped on Hiroshima, Japan

6.3 x 1013 joules or63,000,000,000,000 joules

10 million gallons of gasoline 9 x 1016 joules or 90,000,000,000,000,000 joules

Energy releases from an average hurricane per day

5.2 x 1019 joules per DAY or52,013,000,000,000,000,000 joules

The BIG BANG that created our UNIVERSE! 1.8 x 1071 joules or 180,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 joules

CONTINUE TO ENERGY!

EVER HEARD OF A KILOWATT HOUR?

IT’S HOW THEY MEASURE ELECTRICITY USE IN YOUR HOME.

• So a kilowatt hour is equal to 860 calories; or what you get from eating a burger and fries.

• On a Saturday of sitting inside, you use about 15

Kilowatt hours. (So 15 of those hamburgers and fries)

You would have to walk 52 miles to work that ‘energy’ off.

WE MEASURE ENERGY IN JOULES THOUGH…

• There are about 4 joules in every calorie!

SO IS THAT A LOT OF ENERGY?

• 6.3 x 1016 joules

• 63,000,000,000,000,000 J

CASTLE/BRAVO WAS THE BIGGEST NUKE WE EVER BLEW UP ON EARTH.

LET’S COMPARE OUR STUFF TO THINGS THAT CAN READILY EXPLODE…Explosive substance Energy released in joules

Energy of a lightning bolt 5 x 108 joules or500,000,000 joules

Energy used to bring down WTCs on 9/11 1.2 x 109 joules or 1,200,000,000 joules

First atomic bomb dropped on Hiroshima, Japan

6.3 x 1013 joules or63,000,000,000,000 joules

10 million gallons of gasoline 9 x 1016 joules or 90,000,000,000,000,000 joules

Energy releases from an average hurricane per day

5.2 x 1019 joules per DAY or52,013,000,000,000,000,000 joules

The BIG BANG that created our UNIVERSE! 1.8 x 1071 joules or 180,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 joules

Types of Energy*

HydroelectricGeothermalSolarWindBiomassOilCoalNatural GasNuclearHydrogen Fuel

Which are fossil fuels?Which are nonrenewable?

Renewable Resource*A source of energy that can be replaced faster than it is consumed.

Non-Renewable Resource*A source of energy that cannot be replaced faster than it is consumed.

Brain Pop: Forms of Energy

http://www.brainpop.com/science/energy/formsofenergy

Energy: Prior Knowledge Homework

warm up january 22 nd, 2014 1)what’s the difference between a non- renewable and a renewable...

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