Review for semester test Part 1 Live

Front

What is the law of superposition?

Back

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a once-living organism, often found in sedimentary rock.

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled by an object, while displacement is the shortest straight line from the initial to the final position, including direction.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

What is an index fossil?

Back

An index fossil is a fossil that is used to define and identify a particular time period in the geological time scale.

Front

How does shaking a solution affect the dissolving rate of a solute?

Back

Shaking a solution increases the interaction between the solute and solvent, which can speed up the dissolving process.

Front

What is the significance of trilobites in geology?

Back

Trilobites are significant as index fossils that help geologists date the age of rock layers.

Front

What does it mean for a fossil to be found in multiple layers?

Back

If a fossil is found in multiple layers, it indicates that the organism existed over a long period of time and can be used to correlate the age of those layers.

Front

What is the role of temperature in the dissolving process?

Back

Higher temperatures generally increase the solubility of solids in liquids, allowing them to dissolve faster.

Front

What is a cross-section in geology?

Back

A cross-section is a diagram that shows a vertical slice through the Earth, revealing the arrangement of rock layers.