Unit 2 Part 2

Intro to Chem

100

What is the definition of Chemistry?

Branch of science that investigates the properties of matter, how they interact and how they change.

200

Name at least two different types of chemistry.

Organic, Inorganic, Biochemistry, Physical, Nuclear

300

What is pure scientific investigation?

The search for knowledge or facts. It uses theories and predictions to understand nature.

400

What is applied scientific investigation?

Using knowledge in a practical way. Related to engineering and technology.

500

List the steps that Scientific Inquiry uses.

Scientific Inquiry does not follow steps. 

Intro Cont.

100

Ross wants to know if talking in a British accent will keep his students awake in class. 

What step of the scientific method is Ross exhibiting?

Ask a question

200

Chandler makes an educated guess that Monica will be cleaning when he comes home. 

What step of the scientific method is Chandler exhibiting?

Create a hypothesis

300

Monica uses a hunger-prediction model to determine the trends of foods she should prepare and add to her menu. 

What type of model is she using?

Computer model

400

Joey creates a replica of Hugsy to give to Emma.

What type of model is this?

Physical model

500

Name at least two of the questions you would ask yourself when drawing conclusions. 

Did the results support your hypothesis?

Were there sources of experimental error?

Does the procedure need to be changed?

Matter

100

Draw what the liquid phase would look like. 

Molecules should be close but not in a rigid structure. 

200

What is the name of the Liquid to Gas phase change?

Vaporization/Evaporation

300

What is the name of the Solid to Liquid phase change?

Melting

400

What type of heat transfer is the freezing phase change?

Exothermic

500

What determines the state of a substance?

The amount of movement of the molecules and the distance between the molecules within the substance.

Physical vs Chemical

100

Name 4 physical properties.

Color, size, odor, state, volume, density, melting/boiling point, magnetism, solubility

200

What is the definition of intensive properties?

Do not depend on the amount of matter being measured.

300

Gunther cuts his hair in hopes that Rachel will notice him. 

What type of change is this?

Physical

400

Phoebe burns incense in her apartment.

What type of change is this?

Chemical

500

Name 3 signs that a chemical change has occurred. 

Change in color

Change in odor

Formation of a gas

Formation of a solid

Change in energy

Random

100

What is the name of my dog?

Benson

200

Where did I move from?

Tampa, Florida

300

What position did I play in softball?

Center field

400

What number did I wear in college?

72

500

What year did I graduate high school?

2019