Systems and Scale Unit Test (Approximately 40 points) Thursday October 5, 2017
Format – The test will have two sections, 5 questions will be answered using the computer and the other questions will be answered directly on a test paper. If you do not have a username and login, please go to the library for support. The test contains multiple choice, short answer questions and essay type questions.

Study Tips – All resources used in class can be found on our Biology Website, www.himsbio.pbworks.com. Review your notes, lab journals and opening activities to prepare for the test.

STEP 1 - Reflect on the standards below. Put an X in the column that describes your current understanding. “+” means I totally get it, “√” means I could use some studying in this area and “-“means I need to study.

Standards for System and Scale / + / √ / -
I can describe the rules for matter.
I can describe the rules for energy.
I can construct arguments that use evidence about changes in mass of fuels and CO2 concentration to defend claims about movements of atoms during combustion.
I can describe systems and processes in a hierarchy of scales, including atomic-molecular, macroscopic, and large scale.
I can identify the parts of a microscope and use a microscope to view biological samples.
I can estimate the size of a specimen viewed with a microscope.
I can find patterns in data collected by multiple groups about changes in mass of soda water or fuels and CO2 concentration.
I can draw and explain movements of materials in a burning flame, including air and vaporized fuel entering the flame at the bottom and air enriched in CO2 and water vapor leaving the flame at the top.
I can classify materials as organic or inorganic based on observable characteristics (organic materials include foods, fuels, and tissues of organisms) or molecular bonds (organic materials have C-C and/or C-H bonds).
I can explain the chemical changes that occur when fuels are oxidized, representing the changes

STEP 2 – Review Questions. Select and answer 4 questions from below that are most challenging for you.

1)  Refer back to Lab #3 Burning Ethanol

a.  Describe the chemical change that took place.

b.  How do the number of atoms in the reactants compare to the number of atoms in the reactants.

c.  What evidence did we collect to inform us about the movement of atoms during the reaction?

2)  Refer to Lab #3 Ethanol burning:

a.  Movement Questions: What will gain mass? What will lose mass? Where are atoms going to? Where are the atoms moving from?

b.  Matter Question: What do you think is happening to molecules that have carbon atoms in them?

c.  Energy Question: How do you think that energy is changing from one form to another?

3) Complete the following table:

Material / Type of atoms found in each molecule / Type of Bonds found in each molecule
Water
Propane
Ethanol
Cellulose (C6H10O5)

4) What information would you like to know about a molecule to determine if it will burn or not?

5) Fill out the following table with X’s it the material has the properties listed:

Material / Is it Organic? / Does it have usable Chemical Energy? / Would it burn?
Air
Carbon dioxide
Leaves
Propane
Salt
Animal Fur
Nitrogen (N2)
Soil Minerals (PO4)
Sugar

6)  Complete the process tool for

Ethanol Burning:

STEP 3 – Vocabulary Practice. Select 4 challenging vocabulary words to write a definition and draw a diagram: Atoms, bonds, mass, chemical energy, organic molecule, inorganic molecule, products, reactants, carbon dioxide, combustion, claim, evidence, reasoning, rules about atoms, rules about energy, chemical reaction, relationship between carbon dioxide and BTB (Bromothymol Blue), C-C and C-H bonds

WORD / DEFINITION/EXPLANATION / PICTURE/DIAGRAM
Molecule / Multiple atoms bonded together /