Chapter 3 Fossils Quiz

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Questions: 12 | Attempts: 851 | Updated: Mar 20, 2023

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All about fssils, 6th grade quiz

Questions and Answers

1.

What are fossils?
- A.
  
  Preserved remains or traces of living things
- B.
  
  Animals that recently died
- C.
  
  One celled animals
- D.
  
  Animals that died 400 years ago
- E.
  
  Only dead people
Correct Answer
A. Preserved remains or traces of living things

Explanation
Fossils are the preserved remains or traces of living things. They can be the remains of plants, animals, or even microorganisms that lived in the past. Fossils provide valuable evidence about the history of life on Earth and help scientists understand how organisms have evolved over time. By studying fossils, scientists can learn about ancient ecosystems, the anatomy of extinct species, and the environmental conditions that existed in the past. Fossils can be found in rocks, sediment, ice, and even amber, and they can range in age from thousands to millions of years old.

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2.

A mold is

Correct Answer
hollow area in sediment in the shape of an organism

Explanation
A mold is a hollow area in sediment that forms when an organism is buried and then decomposes, leaving behind an impression or cavity in the shape of the organism. Sediment fills in this cavity, creating a mold that preserves the shape and structure of the original organism. Molds are important in paleontology as they provide valuable information about the morphology and anatomy of ancient organisms.

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3.

A cast fossil is

Correct Answer
solid copy of the shape of an organism

Explanation
A cast fossil refers to a solid copy of the shape of an organism. This means that when an organism dies and is buried, its remains may decay over time, leaving behind an empty space or mold. If this mold becomes filled with minerals or sediment, it hardens and creates a solid replica of the organism's shape. This fossil can provide valuable information about the organism's structure and appearance, giving us insights into the past life forms on Earth.

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4.

A petrified fossil is
- A.
  
  When minerals replace all or part of an organism
- B.
  
  Solid copy of the shape of an organism
- C.
  
  An extremely thin coating of carbon on rock
Correct Answer
A. When minerals replace all or part of an organism

Explanation
A petrified fossil is formed when minerals replace all or part of an organism. Over time, the organic material of the organism is gradually replaced by minerals, such as silica or calcite, which infiltrate the tissues and harden. This process preserves the shape and structure of the organism, essentially turning it into stone. Petrified fossils provide valuable insights into ancient life forms and can help scientists understand the Earth's history and evolution.

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5.

A carbon film

Correct Answer
an extremely thin coating of carbon on rock

Explanation
A carbon film refers to an extremely thin layer of carbon that forms a coating on a rock surface. This coating is typically formed through the deposition of carbon-rich substances, such as organic matter or carbon dioxide, onto the rock over a long period of time. The carbon film can provide valuable information about the geological history of the rock, including its age and the environmental conditions in which it formed. It can also help preserve delicate features on the rock's surface and protect it from erosion.

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6.

A trace fossil provides

Correct Answer
evidence of the activities of ancient organisms

Explanation
A trace fossil refers to any indirect evidence of the activities of ancient organisms. It includes things like footprints, burrows, or feeding marks left behind by organisms. These fossils provide valuable information about the behavior, movement, and interactions of ancient organisms. By studying trace fossils, scientists can gain insights into the ecology and lifestyles of extinct species, helping to reconstruct past ecosystems and understand the evolutionary history of life on Earth.

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7.

Molds and cast are
- A.
  
  The most common type of fossil
- B.
  
  Both copy the shape of an organism
- C.
  
  Both A and B
- D.
  
  None of the above
Correct Answer
C. Both A and B

Explanation
The correct answer is "both A and B." This is because molds and casts are indeed the most common type of fossil, and they both copy the shape of an organism. Molds are formed when the remains of an organism are buried in sediment and leave an impression, while casts are formed when minerals fill in the mold and create a replica of the organism's shape. Therefore, both A and B are correct statements.

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8.

To form a fossil living things must die and get buried by

Correct Answer
sediments

Explanation
In order for a fossil to form, living things must die and then be buried by sediments. Sediments, such as mud, sand, or silt, gradually accumulate over the remains of the organism. Over time, the weight of the sediments compresses the organic material, causing it to undergo various processes of fossilization. These processes can include mineralization, where the organic material is replaced by minerals, or compression, where the material is flattened and preserved. Without the burial by sediments, the remains of the organism would be exposed to decay and decomposition, preventing fossilization from occurring.

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9.

Fossils provide evidence of
- A.
  
  Provide evidence how life has changed over time
- B.
  
  Provide clues of what past enviroments were like
- C.
  
  Help scientists infer how the earth's surface has changed
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
Fossils provide evidence of how life has changed over time by preserving the remains or traces of ancient organisms. They also provide clues about past environments, as the types of fossils found in a particular area can indicate what the environment was like in the past. Additionally, fossils can help scientists infer how the Earth's surface has changed, as the distribution of fossils can reveal information about the movement of continents and the formation of geological features. Therefore, all of the given options are correct explanations for the role of fossils as evidence.

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10.

Scientis believe that earth formed about

Correct Answer
4.6 billion years ago

Explanation
The answer is 4.6 billion years ago because scientists have studied the age of rocks and minerals on Earth and have used radiometric dating techniques to determine that the Earth formed around that time. This age is based on the analysis of meteorites and moon rocks, which are believed to have formed at the same time as the Earth. Additionally, the age of the oldest known terrestrial rocks also supports this estimate.

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11.

Scientis believe that earth began as a ball of dust, rock, and ice in space that was pulled together by gravity
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Scientists believe that the Earth began as a ball of dust, rock, and ice in space that was pulled together by gravity. This theory, known as the nebular hypothesis, suggests that the Earth formed from a cloud of gas and dust called a nebula. Over time, the force of gravity caused this material to come together and form the Earth. This explanation aligns with our current understanding of the formation of celestial bodies and is supported by various pieces of evidence, such as the composition of the Earth's rocks and the presence of similar processes occurring in other parts of the universe.

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12.

A comet is a

Correct Answer
a ball of dust and ice that orbits the sun

Explanation
A comet is a celestial object made up of dust and ice that revolves around the sun. As it gets closer to the sun, the heat causes the ice to vaporize, creating a glowing coma or tail. Comets are often described as "dirty snowballs" due to their composition of frozen gases, dust particles, and rocky materials. They have highly elliptical orbits, which means they spend most of their time in the outer regions of the solar system but occasionally come closer to the sun.

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Current Version
Mar 20, 2023

Quiz Edited by
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Apr 19, 2010

Quiz Created by
MickeyD

Chapter 3 Fossils Quiz

What are fossils?

A mold is

A cast fossil is

A petrified fossil is

A carbon film

A trace fossil provides

Molds and cast are

To form a fossil living things must die and get buried by

Fossils provide evidence of

Scientis believe that earth formed about

Scientis believe that earth began as a ball of dust, rock, and ice in space that was pulled together by gravity

A comet is a