Show:
The Stories of Two Chemicals
Chemistry and Matter
Scientific Methods
Scientific Methods (II)
Sum Up of Chapter One
100
Where is the ozone located?
What is the stratosphere
100
The study of matter and the changes it undergoes
What is chemistry
100
Observations based on a numerical value
What is quantitative data
100

The two most important things to wear in a lab

What are goggles and a lab apron


100

A set of controlled experiments that test a hypothesis.

What is an experiment?


200

What are CFCs?

What is chlorofluorocarbons

200
What is matter?
Anything that has mass and takes up space
200
A tentative explanation for what has been observed.
What is a hypothesis
200

a tentative (possible explanation) for a series of observations.

What is a hypothesis?


200

A visual, verbal, and/or mathematical explanation of how things occur.

What is a model?

300
Why is ozone important in the atmosphere?
Protects organisms from the majority of UV rays
300
Compare and contrast mass and weight
Mass is the amount of space something takes up. Weight is the amount of space and gravity
300

List the steps of the scientific method

What is observation, hypothesis, experiment, data,  conclusion

300

A standard used for comparison in an experiment 

What is a control?

300

These are the chemicals in CFCs. 

What is chlorine, fluorine, and carbon?

400
Why is the ozone thickest over the equator?
There is more sun over the equator, which means more UV rays
400
What is the difference between organic chemistry and inorganic chemistry?
Organic chemistry refers to matter with carbon-containing chemicals while inorganic chemistry refers to matter that does not contain carbon
400

A relationship in nature supported by many experiments

What is a scientific law?

400

An explanation that is supported by many experiments. (natural phenomena) 

What is a theory?

400

This is the agreement that was made that banned CFCs.

What is the Montreal Protocol?

500
What is the chemical formula for ozone and how does it form?
What is O3. UV rays break apart O2 molecules into single atoms, which then bond with other O2 molecules form 3 of them
500
A variable that a scientist can change.

What is an independent variable?

500

What are the two types of research and what is the difference between them?

Pure research is done to gain knowledge while applied research is done to solve a problem