Introduction to Global Science

Ch. 1

Four Branches of Earth Science

Match the Branch with the Picture!!!

1. Geology

2. Oceanography

3. Meteorology

4. Astronomy

A B

C D

Importance of Earth Science

Journal: Why might studying Earth Science be valuable?

Ecology• Where earth science and biology

meet!!!

• Earth scientists study the solid earth, water, and the atmosphere. – These nonliving parts of earth are related

to the living parts of earth. – Example: Ecosystem

How is Earth Science Studied?

The Scientific Method– Observation– Research the topic– Form a Hypothesis– Test the Hypothesis (Experiment)– Conclusion

Hypothesis• An explanation for a question or a problem

that can be tested. • It is NOT a random guess!!!

• Question: How does sunlight affect plant growth?

• Example Hypothesis: An increase in sunlight will improve plant growth. – Can be phrased as an “If, then statement”– Example: If the amount of sun exposure is

increased, then plants will have an increase in growth as measured by height.

Think / Pair / Share

Journal

Create your own testable hypothesis.

It can be about anything school appropriate.

Experiment• Collecting information under controlled conditions

• Control Group: part of an experiment that is a standard against which results are compared.– Receives no experimental treatment.

• Experimental Group: one condition is changed in order to observe the result

Control Experimental (Test) GroupNo Fertilizer Fertilizer

Collect Data • Quantitative Data: numerical

– Measurements of time, temperature, height, mass, area, etc.

• Qualitative Data: descriptions

Conclusion

• Was the hypothesis supported by the results of the experiment?

• Is more data needed?– Experiment need to be repeated several

times with similar results – Experiments need to be reviewed by other

scientists

Review

Journal

List the steps of the scientific method

Journal

Explain the difference between a control and experimental group