Evidence of Change

Geologic time is a way to _______.

• measure the size of Earth over time

• measure the sequence of events on Earth over time

• determine natural processes

• determine common ancestry in fossils

Scientists can use rock layers to determine which of the following

• The mass of Earth

• The size of Earth

• The age of Earth

• The amount of land on Earth

What is the estimated age of Earth?

• 10 billion years

• 6.4 billion years

• 2.6 billion years

• 4.6 billion years

What does the theory of evolution tell us about living things?

• The environment can make them change rapidly over a short period of time.

• They create fossils when they die.

• Their environment makes them change slowly over time.

• They can give us clues about extinct species.

Fossils in _______ layers of rock are generally estimated to be _______ than fossils found in the upper layers

• older, younger

• newer, younger

• older, older

• newer, older

Fossils in _______ layers of rock are generally estimated to be _______ than fossils found in the deeper layers

• older, younger

• newer, younger

• older, older

• newer, older

New evidence can lead to a change in scientific knowledge.

• True

• False

New evidence can lead to a change in scientific knowledge.

• True

• False

Scientists can find new discoveries that change their current understanding of scientific knowledge.

• true

• false

While visiting Wave Rock in Australia, you observe streaks of minerals present on the landform. What natural process most likely caused the streaking

• Erosion

• Deposition

• Oxidation

• Weathering