4th Grade Science : Earth and Space Science

Study concepts, example questions & explanations for 4th Grade Science

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Example Questions

Example Question #7 : Identify Patterns Of Change In Fossils And Rock Layers

In which of Earth's layer would there most likely be a cylindrical shaped particles of rock?

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Possible Answers:

Sandstone

Terrestrial animal fossils

Aquatic animal fossils

Granite

Shale

Correct answer:

Terrestrial animal fossils

Explanation:

This data table provides information about the different characteristics of each of Earth's layers. Each layer has individual features and changes the patterns and appearance of the rock formations. The only layer which has cylindrical shaped particles of rock is made of terrestrial animal fossils. Using the process of elimination, this could be determined from the table.

Example Question #8 : Identify Patterns Of Change In Fossils And Rock Layers

Mrs. Elsa claims that the graphic shown below demonstrates a change in the rock layers. She says that they should be lined up with the same color in each row but there has been a shift.

Which natural disaster could cause this change in rock layers that would support Mrs. Elsa's claim?

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Possible Answers:

Typhoon

Earthquake

Hurricane

Tornado

Correct answer:

Earthquake

Explanation:

Mrs. Elsa is correct, and the graphic supports her claim. The rock layers should be lined up where the same colors are next to each other, but there has been a shift in the layers caused by an earthquake. When an earthquake shakes the rock formations, the layers are shifted, and there is a disruption in their pattern. This cannot be reversed. It provides scientists with evidence that there was once an earthquake in this area and gives them useful information.

Example Question #51 : Earth And Space Science

True or False: The marine fossils pictured below were found in an inland desert. This proves that the environment has changed over time.

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Possible Answers:

False

True

Correct answer:

True

Explanation:

Fossils are a good representation of what the environment was at the time the organism died. If these fossils are of marine creatures, that means they were living in an area that was underwater or near the water. The site is currently described as an inland desert, so the environment has changed over time, making the statement correct.

Example Question #1 : Identify Patterns Of Change In Fossils And Rock Layers

Which section of this rock formation would be the oldest?

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Possible Answers:

Section G

Section C

Section D

Section A

Correct answer:

Section G

Explanation:

The rock layers change through the years, and their location within the formation can assist scientists and researchers learn how old each layer is. The oldest layers are at the bottom of the structure, and the newest layers are at the top. Section G is the oldest layer of the rock.

Example Question #51 : Earth And Space Science

A community in the Philippines is worried about the effects of tsunamis and typhoons. How could the town generate ideas to reduce the impacts of the storms?

Possible Answers:

Hire a team of engineers to design and build structures that can withstand the storms.

Hold a community meeting to brainstorm ideas of how residents could assist.

All of the answer choices would be good ways to generate ideas to reduce the impacts of the storms.

Meet with meteorologists and weather experts to design an early warning system.

Correct answer:

All of the answer choices would be good ways to generate ideas to reduce the impacts of the storms.

Explanation:

Many communities face similar problems with different types of severe natural hazards: hurricanes, volcanoes, and earthquakes. To keep the community safe and help the residents make positive changes, all of the plans to generate ideas would be beneficial. Engineers, weather experts, meteorologists, and community members all have a role to play in preparing for these dangerous storms. By working together to reduce the impacts of the storms, the community can hopefully have a better outcome.

Example Question #1 : Natural Earth Processes

Humans cannot eliminate natural hazards, but they can take steps to reduce their impacts.

Possible Answers:

False

True

Correct answer:

True

Explanation:

The statement in the question is correct. There is no way to eliminate hurricanes, tornadoes, or other natural disasters, but there are ways to reduce the impact that they have on communities. Many towns have task forces with different community members on them to generate ideas and plans for reducing the negative effect that these storms can have. In areas that frequently receive these types of storms, there are codes and rules about the way buildings have to be constructed and where they can be located. Simple changes to buildings and towns can make a big difference.

Example Question #51 : Earth And Space Science

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

The passage gives useful tips to keep people safe if they are caught in a tsunami. Which idea would help give residents more time to prepare before the storm arrives?

Possible Answers:

Houses above sea-level

Early warning alert system

Stronger roofs

Better flotation devices

Correct answer:

Early warning alert system

Explanation:

Giving residents more time to prepare for tsunamis could be a way to reduce the impacts of natural disasters significantly. If people had an early warning system, there would be more time for evacuations, preparation, and getting to higher ground. This is an idea that has been implemented in places that experience these monster waves. There has been an increase in the number of survivors and a decrease in the number of casualties.

Example Question #111 : 4th Grade Science

Which answer choices are examples of natural hazards that can harm communities?

Possible Answers:

Deforestation, pollution, earthquakes, and floods

Earthquakes, pesticides, tsunamis, and volcanic eruptions

Earthquakes, famine, war, and volcanic eruptions

Earthquakes, floods, tsunamis, and volcanic eruptions

Correct answer:

Earthquakes, floods, tsunamis, and volcanic eruptions

Explanation:

Natural hazards are events that are not human-made and harm communities. The events have to be naturally occurring and not influenced by humans. Earthquakes, floods, tsunamis, and volcanic eruptions are all examples of events that are generated by nature, and there are no influences by humans.

Example Question #5 : Generate Ways To Reduce Impacts Of Earth Processes

There is only one way to reduce the impact of an earthquake on a city and its residents.

Possible Answers:

False

True

Correct answer:

False

Explanation:

The statement is false. There are multiple ways that a city and its residents could be protected and reduce the impact of an earthquake. Building houses that can withstand the trembling, stronger foundations and roofs, early warning systems, emergency supplies prepared, and strict building codes are all ways to reduce the negative impacts of an earthquake.

Example Question #6 : Generate Ways To Reduce Impacts Of Earth Processes

A community in Japan is worried about the effects of tsunamis and typhoons. Which idea would NOT reduce the impacts of the storms?

Possible Answers:

New construction that is closer to the water

Build structures that can withstand the storms

Design an early warning system

Plant trees and other vegetation near the water's edge

Correct answer:

New construction that is closer to the water

Explanation:

Many communities face similar problems with different types of severe natural hazards: hurricanes, volcanoes, and earthquakes. To keep the community safe and help the residents make positive changes, new safety ideas and measures need to be taken to strengthen the structures and land. Adding new construction that is closer to the water would NOT help reduce the impact of storms, but could increase damage to the buildings. Floodwaters rise and swell near the shore, so moving houses, further inland would be a better idea.

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