Fossils

How are fossils created?

• Traces of organisms get turned into stone.
• Dead organisms are quickly buried for millions of years.
• Animals get trapped.
• All of the above

Fossil Fuels formed over long periods of time after particles in water settled to the sea floor and formed marine mud.  What kinds of particles needed to be present in the marine mud in order for fossil fuels to form.

• Mostly sand and a few small bits of wood
• Mostly decaying organisms
• Mostly lava and a few sedimentary rocks
• Mostly metal minerals

Fossil Fuels form in sedimentary rocks when -

• plants use the nutrients in the sediments to grow
• organic matter is buried along with sediments
• rivers carry sediments down mountainsides
• sediments are used by humans as a resource

Fossils give us evidence about which of the following?

• plants and animals that lived long ago
• how weathering and erosion break down rocks
• the other planets in our solar system
• the transfer of energy from one form  to another

Why are there more animal fossils than plant fossils?

• Animals eat plants.
• Plants are smaller than animals.
• Plants have softer body parts than animals. 
• There were more ancient animals than ancient plants.

Which type of fossil would look just like an actual body part of a once-living thing?

• a cast
• a trace
  atrace
• a mineral
• a footprint

Which is an imprint fossil?

• bone
• a cast
• petrified wood
• an animal track

In which type of rock are most fossils found?

• igneous
• sedimentary
• volcanic
• metamorphic

A fossil animal has a mouth full of sharp, pointed teeth.  What can you infer about the animal?

• The animal ate fruits and vegetables.
• The animal is closely related to a shark.
• The animal did not live on land.
• The animal ate meat.

What type of fossil is this?

• Trace fossil
• Mold
• Cast
• Carbon film