Earth Unit 1 Test (Ch. 1, 3, 4)

Scientific theories are based on

• general assumptions of how systems work.
• mathematical principles that can be proven true.
• large amounts of data collected over time.
• observations from within only one scientific discipline.

Scientific theories do not change once they have been written down.

• True
• False

What is a hypothesis?

• the thing changed on purpose in the experiment

• an explanation about what you observed

• using your 5 senses to gather data

• an educated guess about the outcome of an experiment

When is a hypothesis written?

• before you decide on a question

• after the experiment

• before the experiment

• after the conclusion

An idea that is assumed to be true is called a/an....

This kind of map shows changes in land elevation.

If contour lines are close together, then the slope is

• gentle
• steep
• flat
• going up and down

What is the contour interval on this map?

• 100
• 10
• 15
• 20

What is the latitude and longitude of the sunken ship?

• 20.5° S , 70° W

• 20.5° S. 70° E

• 20.5° N, 70° W

• 20.5° N, 70° E

What part of a map is this?

• Key

• Scale

• Contour

• Elevation