1/19 A/B DayLEQ: How are natural substances different from synthetic ones?

1. What is solubility? 2. What are three things that can change the solubility of a substance?3. In salt water, what is the solute and what is the solvent?4. If a scientist puts a bunch of different objects in an oven, which will get the hottest—the object with the lowest specific heat or the object with the highest specific heat?5. Explain your answer to #4!

PRACTICE EOG REFLECTION1. Are you satisfied with your score on the practice

EOG?2. Why or why not?3. So far this year, are you doing what you need to

do in order to reach our class goal of a 3 or 4?4. If you are, what are three things you need to

KEEP doing for our next two units? If you are not, what are three things you need to do better on for the rest of the year?

5. What surprised you most about the practice EOG?

Let’s Review: Whiteboards

PUT THESE IN ORDER FROM OLDEST TO

YOUNGEST…

B

C

A

Oldest: C

A

Youngest: B

1. What is the oldest fossil?2. What is the youngest fossil?3. What do we call it when a

piece of the fossil record is erased?

What are the three things that

happen at DIVERGENT

BOUNDARIES?

Mid-Ocean Ridges

Rift Valley

Seafloor Spreading

Seafloor Spreading

Rift Valley

Rift Valley

RIFT VALLEYRift Valley

Rift Valley

Seafloor Spreading

Mid-Ocean Ridges

Rift Valley

Seafloor Spreading

Mid-Ocean Ridge

NEW CRUST!Rift Valley

Mid-Ocean Ridge

RIFT VALLEY

Seafloor spreading

MID OCEAN RIDGE

SUBDUCTION ZONES

TRENCH

VOLCANO

EOG QUESTION: Which of the following describes the law of

conservation of matter?a. matter cannot be created and it cannot be

destroyed

b. matter is made of everything and everything is made of matter

c. older layers of rock are at the bottom, younger layers of rock are at the top

d. all living things are made of elements and compounds

Today’s LEQ: How are natural materials different from synthetic ones?

By the end of today, you should be able to…

1. Describe the difference between natural and synthetic materials

2. Identify natural and synthetic materials on the periodic table

Focus Vocabulary

87. Natural Chemical88. Synthetic Chemical

CONTEXT CLUES:

“This material is synthetic. It’s made in a factory by giant machines.”

“This synthetic substance can only be found in specific parts of Charlotte. It is not produced naturally around the world.”

Stop and Jot: Write your own definition of

Draw this in your notes:Natural Chemical

Synthetic Chemical

Synthetic Chemical:

• Chemicals that are manmade and do not exist in nature

• Examples: steel, bronze, plastic, and all elements with an atomic # of 95 or higher

Natural Chemical:

• Chemicals that exist in nature

• Examples: water, gold, oxygen

BOTH:

• Made of atoms• Forms of matter• Make up all living

and non-living things

Natural Synthetic

SORT THESE!!

Copper

Calcium

LeadNeptunium

Europium

Plutonium

Silver

HydrogenNylon

Neon

Velcro

LycraPolyethylene

EOG QUESTION:

Which statement applies to all natural elements?

a. they are all found on earthb. they exist in naturec. they are made by humansd. they are all metals

How it’s made: Glass cookware, bars of soap, steel drums, and firefighter jackets

Summarizer:

A science teacher tells his students that all natural chemicals are not harmful and all synthetic chemicals are highly dangerous.

Based on what you know about natural and synthetic chemicals, write 3-5 sentences to

the science teacher to explain whether you agree or disagree with this statement

and WHY.