FOSSILS

A student wants to create a model to represent how a turtle fossil formed once it dies. They designed the following plan for the model.

Which of the following would be the BEST for the student to do to continue their model for Step 3?

• Squish the clay to show that overtime fossils will disappear.

• Fill in the gaps with glue to represent minerals filling the space.

• Reveal the fossil since it is time for scientists to discover the fossil.

• Smooth the imprint over with your fingers to show that sediment will fill in the spaces.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Erik and Carol are each creating a model to represent how an imprint of a leaf fossil is formed.  Below are their descriptions of the model they created.

Who has a more accurate model?

• Erik, because he used play dough and it will decompose in the soil.

• Erik, because he buried it in soil which happens to all dead things.

• Carol, because the glue represents the minerals filling in the spaces to form a fossil.

• Carol, because she used clay and it could be molded over and over into something new.

A student is observing two fossils found in a warm wooded region. One fossil is of an animal and one of a plant. Both of these fossils appear to have the same characteristic that they retain water. What can you infer about the environment in which these organisms lived?

• The fossils are of organisms that once lived in an ocean because they need water in order to survive.

• The fossils are of organisms that once lived in a desert since these organisms are able to live where there is limited water.

• The fossils are of organisms that once lived on the coast next to the ocean because they lived on land, but need access to the ocean.

• The fossils are of organisms that once lived in a wooded area because there are a lot of types of plants and animals found in this region.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Two fossils are found in a cold mountain region. One is a fish fossil and the other is a palm tree fossil. What can you infer about the environment in which these organisms lived?

• A cold mountain region because an environment cannot change its type of environment over time.

• A warm mountain region because since there are palm trees, the area needs to be warm.

• A hot desert because palm trees are found in hot areas.

• A warm ocean environment because fish are found in areas with water and palm trees are found in warm ocean environments.

A group of third graders share the task of creating a model to represent how fossils are formed. One of the students is in charge of representing the step that organisms are buried under sediment. They are using a clay dinosaur to show the steps. Which of the following would BEST demonstrate this step?

• Use glue to fill in empty spaces on the clay dinosaur.

• Use a book to push down dirt over the clay dinosaur.

• Use a pencil to pick at the dirt around the clay dinosaur.

• Use a piece of paper to squeeze the clay dinosaur from all directions.

A boy was hiking through a desert with his family. He found a fossilized insect that has pinchers for eating grass while he was digging in the sand. What can the boy conclude about the habitat of the once living insect?

• The area was always a desert and someone put the fossil there.

• The area was once covered in water and must have had sea animals.

• The area must have once had lots of grass because of the characteristics of the fossil.

• The area has always been a desert because of the location where the fossil was found

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

A student creates a model to show the process of how the following fossil formed.

Which of the following should the students include in their illustration?

• The student should show people digging out the fossil to show an animal becomes a fossil the moment it is discovered.

• The student should draw a time lapse of images for each step with arrows and descriptions.

• The student should label the soil types in each layer of the illustration.

• The student should label the type of dinosaur in their image.

Tags

NGSS.MS-LS4-1

Which table is the correct sequence and why?

• Table 1 because the fossil is discovered last.

• Table 1 because the organism must be buried quickly after dying.

• Table 2 because the parts decay before it is buried.

• Table 2 because the fossil is discovered last.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What clues does the fossil give you about how the animal moved and what type of habitat it lived in?

• This animal lived at the bottom of the mountain since it was discovered at the mountain, but the mountain rose in height over time.

• This animal lived at the top of a mountain since that is the location it was discovered.

• This animal lived in a water environment such as a lake or ocean since it has bones.

• This animal lived in a water environment since it has dorsal fins.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

A student was observing a full fossilized skeleton of an animal at a museum. He wants to know more about the animal and is curious about the type of habitat it lived in when it was alive. What clues below would BEST help him to find out what he wants to know?

• The animal has large tusks with very short front legs and long legs in back.

• The animal has a very large body and flipper-like front feet.

• The animal has large flat teeth and really large rib bones.

• The animal has very sharp teeth and a really large skull.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2