Geology Unit:Geology Unit:

Earth’s History-Geologic TimeEarth’s History-Geologic Time

September 1September 1stst, 2009, 2009

Assigned Seats Assigned Seats

•Please grab your things and stand at the back of the room

Do Now…Do Now…

•Take Out Science Safety Contract–(last nights homework)

Why is classroom and laboratory

safety important?

Science Safety RulesScience Safety Rules

1. Follow all written and oral instructions.

2. Read and review ALL instructions.

3. Do only lab work that is approved by the teacher.

4. Only materials and chemicals supplied by the teacher may be used.

HomeworkHomeworkIf you haven’t done it already…If you haven’t done it already…

• Have parents sign Science Safety Rules

Do Now…Do Now…• Open Earth Science Book (Canyon

Cover)

P. # 4

• “What is Science” article

Directions…Directions…

1. Read as a class

2. Take notes

3. Discuss material

Topic: What is Science?Topic: What is Science?

• Science • A way of learning about the natural world

Topic: What is Science?Topic: What is Science?

• Scientific Inquiry • A diverse way in which scientists explore problems and answer questions about the natural world

Topic: What is Science?Topic: What is Science?

• Observation • Involves:– Sight– Hearing– Smell– Taste– Touch

Topic: What is Science?Topic: What is Science?

• Inference • An interpretation based on observation and prior knowledge

~Checkpoint~~Checkpoint~

What is the difference between an observation

and an inference?

Topic: What is Science?Topic: What is Science?

• Scientific Methods 1. Posing a question

2. Developing a hypothesis

3. Testing*Controlled Experiment

4. Gather data

5. Draw conclusions

• Scientific Method Video

Topic: What is Science?Topic: What is Science?

• Hypothesis • An educated guess

• Can be tested

~ Checkpoint ~~ Checkpoint ~

What is a hypothesis?

A hypothesis is an educated guess.

Topic: What is Science?Topic: What is Science?

• Variable • Factors that can change in an experiment

Topic: What is Science?Topic: What is Science?

• Independent variable • Variable that the scientist can change

Topic: What is Science?Topic: What is Science?

• Dependent Variable • Changes because of independent variable

Topic: What is Science?Topic: What is Science?

• Controlled Experiment

• Test of a hypothesis in which only 1 variable can affect the outcome of the experiment

Topic: What is Science?Topic: What is Science?

• Data • Evidence gained through observation

Topic: What is Science?Topic: What is Science?

• Simulation • Model that imitates something in the real world

Topic: What is Science?Topic: What is Science?

• Scientific Theory • A well-tested scientific concept that explains a wide range of observations

• Has withstood repeated tests

~ Checkpoint ~~ Checkpoint ~

What is a scientific theory?