WorksheetsScience Grade 7 Interim Assessment Extraction
Total questions: 10
Worksheet time: 5mins
Rock Strata: The term rock strata refers to a collection of layers of sedimentary rock. These horizontal layers form from the processes of weathering, erosion, deposition, compaction, and cementation. Below are pictures of the rock strata of a mountain. What can you infer about the age of the rocks in both pictures?
The rock layers at the top of the mountain are the oldest.
The rock strata can provide an absolute time scale of Earth's history.
The rock strata can be used to understand relative dates in Earth's history.
The rock layers in the mountain are made out of materials that are the same age.
Scientists find a new mid-ocean ridge forming along an underwater mountain range. What type of plate motion would scientists expect to find?
Both plates moving in the same direction to the right
Plates moving in opposite directions away from each other
Both plates moving in the same direction to the left
Plates moving in opposite directions towards each other
Scientists find a new mid-ocean ridge forming along an underwater mountain range. What can scientists assume based on this finding?
The plates are converging in this area.
Crust is being pushed back down the mantle here.
New ocean floors have stopped being produced at the ridge.
The crust near the ridge is newer than the crust farther from the ridge.
In 1983, a team of scientists discovered a fossilized bone of a giant flightless bird when excavating land in Brazil. After studying the fossil, the team thought that the bird was unique to South America but had been extinct for millions of years. Many years later, another fossil from the same species of giant flightless bird was found in Nigeria. The two fossils were formed in rock that was very similar to one another. Look at the land masses on the map. Using the fossil evidence, what can the scientists infer about the land masses?
The land masses were once connected.
These were two different types of giant birds, even if their fossils look identical.
The fossils date to different time periods and appear in separate regions.
The giant bird migrated to South America, since the bones were later found in Nigeria.
A group of students is developing a paper airplane to model the forces of flight. The goal is to have the plane fly straight, with the wings as parallel to the ground as possible. After building the model plane, they test its ability to fly and record: Test 1—plane flew 3 feet but drifted left; Test 2—plane flew 2.6 feet; Test 3—plane flew 2.8 feet but drifted left. Based on the data collected, what can the students do to modify their design?
Fix the design to make the plane bigger.
Throw out the old design and start over.
Add more wings to make the plane fly farther than 3 feet.
Find a way to balance the wings so the plane does not tip to the left.
A science class is studying Earth's water supply and global usage. Students collected data and put it into the graph shown. Based on their findings, what can be inferred about water usage?
Water usage will continue to increase at the exact same rate that the population is increasing.
Even if the population stops growing, the water usage around the globe will continue to rise at the same rate.
Growing populations worldwide are correlated with Earth's water supply being used in increasing amounts.
The amount of water being used does not match the number of people in the world, so no connections can be made between population and water usage.
Which of the following statements about rock formation is the most accurate?
All rock types will form under similar conditions but they will have distinct properties.
Similar processes in different areas will result in rock types with different properties.
Different processes in different areas can result in a variety of rock types.
Rocks of the same type result from different processes in similar areas.
Some of the evidence for how the arrangement of the continents may have changed over time is illustrated in a current world map with symbols indicating mountains of similar age and composition, Glossopteris fern fossils, Cynognathus (3 m reptile) fossils, and matching coal deposits. Compare this current world map to four maps labeled A, B, C, and D that show what Earth might have looked like millions of years ago. Based on the fossil distribution in the current world map, which of the four maps is the most accurate?
A
B
C
D
The geologist wants to explain why fossils of some fish are found high in the mountains. Not far from the west coast of South America is a mountain chain called the Andes Mountains. The average elevation of the Andes Mountains is 3,962 m ( 13,000 ft ). High in the Andes Mountains, many fossils of whales, fish, and other marine life have been found. Study the map showing the Nazca Plate to the west, the South American Plate to the east, and the Andes Mountains along their boundary, then answer: How did marine fossils come to be high in the Andes Mountains?
The Nazca Plate and the South American Plate are divergent plates.
The Nazca Plate and the South American Plate are moving away from each other.
The divergence (pulling apart) of the Nazca Plate and the South American Plate has created a rift around which mountains have grown.
The convergence (collision) of the Nazca Plate and the South American Plate has uplifted (pushed up) parts of Earth that were formerly ocean into mountains.
USGS (United States Geological Survey) detects an igneous rock formation underneath Earth’s outer layer. Geologists studying the site wonder if material in this igneous rock used to be sedimentary rock at Earth’s surface. Can material in sedimentary rock become igneous rock? Use words from the word bank to choose the best explanation. Word Bank: energy, magma, sediment, sedimentary, erosion, subduction, igneous, rock, weathering
Yes. Sedimentary rock can be subducted, melt into magma due to heat and energy, and then cool to form igneous rock.
Yes. Weathering and erosion turn sedimentary rock directly into igneous rock without melting.
No. Sedimentary materials can only become more sediment by erosion and cannot change into other rock types.
No. Igneous rock forms when magma erodes and cements at the surface, so sedimentary rock cannot become igneous.
