3rd grade earth and rocks

Question 1

A rock layer holds fossil fish, and the layer above holds fossil land plants. What happened?

• A. Fish turned into plants.
• B. Water covered the area, and later it became dry land.
• C. Nothing changed.
• D. Plants lived under the sea.

Question 2

Is this rock permeable or impermeable: marble?

• A. permeable (lets water through)
• B. impermeable (does not let water through)

Question 3

True or false? Antarctica was once warm enough for forests.

• A. True
• B. False

Question 4

Which type of soil holds the most water?

• A. dry sand
• B. sandy soil
• C. clay soil
• D. gravel

Question 5

True or false? Some fossils look very similar to plants and animals alive today.

• A. True
• B. False

Question 6

Rocks and soils: which statement is NOT true?

• A. Soil contains bits of rock and organic matter.
• B. All rocks are the same.
• C. Rocks can be compared by hardness and permeability.
• D. Rocks can be natural or made by people, like brick and concrete.

Question 7

Archaeopteryx fossils show feathers AND teeth. What does this suggest?

• A. It was a kind of fish.
• B. Feathers are made of teeth.
• C. Birds are related to reptiles such as dinosaurs.
• D. Birds have always had teeth.

Question 8

Why do most fossils show bones, teeth and shells rather than skin?

• A. Animals had no skin
• B. Hard parts last longer; soft parts rot quickly
• C. Scientists remove the skin
• D. Skin turns into rock straight away

Question 9

In how a sea shell becomes a fossil, what happens straight after "layers of sediment cover it"?

• A. a sea creature dies
• B. the fossil is found in the rock millions of years later
• C. its shell sinks to the sea floor
• D. the sediment slowly turns into rock

Question 10

Which living thing is most similar to this fossil: Archaeopteryx?

• A. modern birds
• B. dragonflies today
• C. the ginkgo tree
• D. elephant

Question 11

What does this fossil evidence tell us: fossil coral in a desert?

• A. the rock was once under the sea
• B. there was once a warm, shallow sea
• C. there was once a lake or sea there
• D. the land was once warm and wet

Question 12

Why are fossils most often found in sedimentary rock like sandstone and limestone?

• A. These rocks are the hottest.
• B. Animals chose to die there.
• C. Other rocks are too young.
• D. These rocks form from layers of mud and sand that buried living things gently.

Question 13

Is this rock permeable or impermeable: slate?

• A. permeable (lets water through)
• B. impermeable (does not let water through)

Question 14

True or false? A fossil fish in a desert proves fish can live in sand.

• A. True
• B. False

Question 15

Which type of soil holds the most water?

• A. gravel
• B. dry sand
• C. sandy soil
• D. clay soil