WEEK OF OCTOBER 31-NOVEMBER 4, 2011

TEKS: 6.2, 6.5,

TITLE FOR MONDAY, 10-31-2011 COMPOUND FORMULA LAB

What are the different elements that makeup the following compounds?1. H2SO42. AlF3CaNa23. K2Br

S Starter: Write the question.

Agenda:

StarterCompound Formula LabExit

P Practice Students will first observe the

substances in each test tube and record 2 observations for each. Test Tube Observation 1 Observation 2

23456

P Practice Students will examine Compounds and

Elements matching cards. Students will try to match cards to the

correct compounds to chemical formulas.

P Practice Draw the Compounds and Elements chart. Once you have checked with teacher for

accuracy fill out correct answers.Common Name Chemical Name Chemical

FormulaElements in Compound

Exhaled Breath

Water

Table Salt

Honey

Chalk

Sand

Apply & Connect1. What is a way for you to remember the difference

between elements and compounds?2. Make a list of the elements used to make the

compounds we talked about today.3. Why would scientists work so hard to find new

compounds like honey and table salt?

Exit Write a half page reflection on what you

learned today. Be sure to include the following key

words in your reflection Elements Compounds

TITLE FOR TUESDAY, 11-1-2011 COMPOUND FORMULA LABS Starter: Fill in the missing spaces below.1. Al Bromine 2.3. Ca4. C Gold 5. Helium 6.7. H8. N

Agenda:

StarterCompound NotesExit

P Practice- copy the following vocabulary

words in your journal. •A compound-is made from two or more elements that are chemically combined and can not be separated by physical means into other substances. A compound has different properties than the original elements that formed it.•A chemical formula -is a combination of chemical symbols showing the atoms of which a substance is made and their proportions.•A physical change -when substances undergo a change without changing into another substance.•A chemical change - when substances undergo a change and become a new or different substance.

P Practice- copy the following vocabulary

words in your journal. •A subscript is a number written just below the line that shows how many atoms of an element are present in the formula.•A molecule is the smallest particle of a compound that can exist on its own and keep its properties.•A precipitate is a new substance produced as a result of a chemical change (solid).

P Practice- copy the following words in

your journal. Compounds are formed when atoms of different elements are combined.

When the elements are combined their identities change.

Water is formed from hydrogen and oxygen.

Both elements are gases. When combined they turn to a

liquid. Hence their identities change.

P Practice- copy the following words in

your journal. Analogy: Think of elements as letters of the

alphabet and compounds as words formed by combining the letters.

We can spell all of the English words with just 26 letters.

We can form millions of compounds with just 109 elements.

Ex: Sodium(Na) + Chlorine(CI) = Salt(NaCI)

P Practice- copy the following notes in

your journal. What type of change occurs when forming compounds? Chemical

changes Do the characteristics of an element change when combined with another? Yes, the change occurs on a

molecular level. What happens when 2 or more elements combine and their properties change? A compound is

formed

P Practice- copy the T-chart in your notebook.Elements Compoun

dsBoth

P Practice- Write each of the following statements where they belong.A.Found in Earth’s atmosphere.B.Needed for humans to survive.C. Made from more than one element.D.Made of one pure substance.E. Can be broken down into simpler

substances.F. Are pure substances.G.Make up substances we use

everyday.H.Can be written using subscripts.I. Can be found on the Periodic Table.

Apply & Connect1.Give 2 examples of how to write a

subscript correctly.2.Explain why it is important for you to

understand what compounds are.

Exit Write a half page reflection on what you

learned today. Be sure to include the following key

words in your reflection Elements Compounds

TITLE FOR WEDNESDAY, 11-2-2011 COMPOUND NOTES

Create a bar graph with the following information:Cupcakes Mass per

cupcake(grams)

Chocolate 20Vanilla 45

Strawberry 60White

Chocolate90

SStarter:

Agenda:

Starter Physical vs. Chemical Changes Quiz Exit

P Practice- • Number your paper 1-10.

• You will watch as the teacher performs difference changes and take notes on what is occurring.

• You must make two observations for

each change.

• You will then decide if each is a physical or chemical change.

Teacher Slide1. Sugar dissolving in water.2. Baking Soda into vinegar.3. Cutting a piece of paper up.4. Ice melting.5. Food Coloring into water.6. Oxygen into Carbon Dioxide. (Balloon)7. Glowstick Breaking.8. Lighting a candle. (Tealights)9. Crushing a plastic bottle.10.Oxidized Penny

Apply & Connect1. Give an example of an experiment you

could conduct to demonstrate a physical reaction.

2. Describe an example of a chemical reaction that occurs in your life frequently.

Exit Write a half page reflection on what you

learned today. Be sure to include the following key

words in your reflection Compounds Subscript

Title for Thursday, 11-3-2011

Water Or Not LabHow many TOTAL atoms are

found in the following chemical formulas?

S Starter: Write the question.

Compare the formulas below. What makes them different?

1. NH32. H2SO4

3.H2O H2O2 4.C6H12O6

C12H22O11

Agenda:

StarterWater Or Not LabExit

P Practice Students will draw the lab setup

in journal and write observations and predictions about what the lab could be demonstrating.

REMEMBER: Even though some liquids look similar, they can have very different properties.

Please be careful with both substances, do not taste or touch either substance over the next two days.

P Practice I will explain what we are going to do in

this upcoming lab. It is your job to work with your group and

create the problem, hypothesis, materials list, procedure, observations/data, results and conclusion for this lab. (Today you will stop at procedure.)

Be specific in your instructions. (Pretend someone has never done a lab before.)

Be sure to include safety procedures. Use complete sentences and thoughts. Start at the very beginning and work to the end.

P Practice*HINT* PLEASE WRITE IN JOURNAL.

Hydrogen peroxide is used as an antiseptic to wash cuts. One characteristic of hydrogen peroxide is that it will produce bubbles when applied to a wound. Water will not. The formation of bubbles is one sign that a chemical reaction has taken place.

Apply & Connect1. What is the difference between water and

hydrogen peroxide on an atomic level?2. Why would we do a lab with two

substances that look exactly the same? What does this teach us?

Exit Write a half page reflection on what you learned today. Be sure to include the following key

words in your reflection Elements Compounds Water Hydrogen Peroxide

Title for Friday, 11-4-2011 Water Or Not Lab

1. Draw a picture of an element used in school everyday.

2. Draw a picture of a compound used in the cafeteria.

SStarter:

Agenda:

StarterFinish Water Or Not LabExit

P Practice Students will refer to lab write

up from Thursday. We will finish with putting the

potato slices into the clear substances today and completing our lab write up.

We will need to complete observation/data, results and conclusion.

Apply & Connect

Exit Write a half page reflection on what you learned today. Be sure to include the following key

words in your reflection Elements Compounds Mixture Periodic Table

1. Why do we need to be specific with lab procedures?

2. What reaction led us to believe a chemical reaction was occurring today?

3. Explain a situation in which hydrogen peroxide could be helpful to your family.

Materials Test tubes/rack Table salt Chalk Sand Honey Balloon Hydrogen Peroxide Potatoes Paper Towels Beakers