Introduction to Earth Science

Open Ended

Take a few minutes and write what you can in support of each of these statements:

(1) Humans depend on Earth for resources;

(2) Natural hazards pose risks to humans; and

(3) Humans significantly alter Earth.

Multiple Choice

To be correct, a scientific theory must be all of the following EXCEPT:

• Supported by every part of a large collection of evidence

• Considered to be unchangeable even if new scientific evidence disproves it

• Testable by comparison with scientific evidence

• An explanation of something that actually occurs within the natural world or within

  technology

Open Ended

Describe the relationship between a hypothesis, a theory, and a

natural law.

Open Ended

You are planning an experiment to find out which detergent is the best at removing

grass stains from cotton fabric. Think about how you might do this experiment and

what kinds of variables are involved. Make a list of two variables that would be a part of the experimental system and two variables that would not be a part of this system.