Fossil Dating~ Reading Response Questions

How old is Earth?

• 4.6 billion years old
• 6.4 million years old
• 2000 AD years old
• 300 AD years old

Fossils are the ________ of ___________.

• explanation, history
• reason, life as we know it
• evidence, ancient life
• evolution, life on Earth

_____ fossils are made from parts of the organism like shells, bones, and teeth.

• Trace
• Ancient
• Compact
• Body

_____ fossils preserve evidence of activities like tracks and ______.

• Trace, droppings
• Body, nests
• Organisms, rocks
• Evolution, bones

These impressions provide _______ about where the animal ________.

• drag-marks, droppings
• trilobites, impressions
• clues, lived
• impressions, fossils

Colorful layers make up the _______. This area contains ________ about how Earth has changed over time.

• rock area, fossils
• canyons, particles
• rock layers, fossils
• Grand Canyon, evidence

Fossils are relatively rare. Why don't we find more?

• Soft parts of organisms can be preserved easily
• Organisms usually decay or are eaten
• Hard parts of organisms decay faster
• Sediments don't usually pile up

The principle of superposition means____.

• fish are older than shells and lizards
• the rock layers on the top are older than the rocks below
• fossils with a lot of fossils are super and the rocks with no fossils are plain
• the lower rock layers are older than the rocks above

Relative dating compares the relative age of rocks. In general, the ____ the rock layer, the _________ the fossil it contains.

• older, younger
• younger, yonger
• younger, older
• older, older

All matter is made of particles called ___.

• oxygen
• atoms
• rocks
• solids