Homework: 5



Classwork: 5.7D Fossils

1. In 1970, fossil remains of a Tyrannosaurus Rex were found in Big Bend National Park. The Tyrannosaurus Rex fossils included part of an upper jaw and some very sharp teeth. Which conclusion is best supported by the discovery of these fossils?

A. The Tyrannosaurus Rex fossils were

carried to Big Bend by a river

B. The Tyrannosaurus Rex became

extinct because Big Bend was

uninhabitable.

C. The Tyrannosaurus Rex ate animals

that were living in Big Bend

D. The Tyrannosaurus Rex ate plants

that were native to Big Bend.

2. During a museum field trip, students observe the fossil remains of woolly mammoth. The sign next to the fossil remains is below:

Based on the information on the sign, in which type of environment did the woolly mammoth live?

A. Very hot and dry

B. Wet and humid

C. Warm and sunny

D. Cold and snowy

3. All of the following are very helpful when identifying evidence of past living plants EXCEPT-

A. a fossil of a plant from long ago

which has now changed to stone

B. an impression left by a plant that

lived a very long time ago

C. The remains of the plant replaced

with minerals

D. a rock from the mantle, located deep

underneath Earth’s surface

4. Which of the following would be the best to use when gathering information to identify fossils as evidence of past living organism?

A. Terrarium B. Microscope

C. Computer D. Collecting Net

5. Marine geologists conduct field investigations to collect samples of fossils such as those pictured below.

[pic]

Based on the information in the pictures, what conclusion can be made about marine fossils and their environment?

A. They were animals that lived in caves.

B. They were plants that lived in caves.

C. They were plants that lived in the sea.

D. They were animals that lived in the sea.

6. Students compare the fossils shown in layer A with those in layer C.

What conclusion can be made by comparing the fossils in these two layers?

A. Fossils in layer A are younger than those in layer C.

B. Fossils in Layers A and C are the same age.

C. Fossils in layer A are older than those in Layer C.

D. Fossils in Layers A and C are younger than those in Layer B.

7. Fossils are found in which of the following?

A. Seashells B. Igneous Rocks

C. Sedimentary D. Metamorphic

Rocks Rocks

8. Students are creating models of fossils during science class. Which explains why scientists study fossils?

A. Fossils help predict climate changes.

B. Fossils help keep species from becoming

extinct.

C. Fossils help understand about past organisms

and their environments.

D. Fossils help understand what to expect in the

future.

9. An ancient fossil of a fish is found in a dry area. What does this suggest about how this area used to look?

A. The land was a dense forest.

B. The land was a dry desert.

C. There was once water in the area.

D. The fossil was moved because there could not

have been water there in the past.

10. When examining sedimentary rock layers to better understand the nature of a fossil’s environment, which layer is considered to have evidence of the oldest past living organisms?

A. The top layer of rock

B. The middle layer of rock

C. The bottom layer of rock

D. All of the above

11. After studying fossils, a student makes the following conclusion, “Fossils help us understand past environments.” Is the student’s conclusion valid?

A. Yes, because fossils are remains of plants and

animals of the past.

B. Yes, because fossils can no longer be formed.

C. No, because fossils do not give us a clue

about past environments.

D. No, because fossils can no longer be found.

12. “Most living things that die become fossils.” This hypothesis was formulated before learning about fossils. Is it accurate?

A. Yes, because many fossils have been found

B. Yes, because fossils can be easily formed

C. No, because certain conditions need to be

present in order for fossils to form

D. No, because living things that die become

fossils

CER Problem

This table gives information for different kinds of fossils. Finding which kind of fossil would lead to the conclusion that the area where it was found was, long ago, under hundreds of meters of salt water?

[pic]

13. Claim: The _____________________________ fossil would lead to the conclusion that the area used to be under ______________ water.

14. Evidence: The habitat associated with the __________________________ fossil is the Deep ____________________ which has ____________________ water.

15. Reasoning: There are two fossils in the chart that have animals that live in the water: ____________________ skull and the ____________________ tooth. The habitat for the skull is ____________________ water, while the habitat for the tooth is deep ___________________ which has ___________________ water.

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Woolly Mammoth

(lived 1.65 million years to 10,000 years ago)

• Hairy coat, 3 feet long in places

• Thick layer of wool next to the skin

• Up to 4 inches of fat beneath the skin

• Small ears and a short tail

Word Bank: Alligator Fish Fresh

Ocean Salt Shark’s Swamps

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