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Fourth Grade (Grade 4) Earth Science Questions

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Grade 4 Volcanoes
Which phrase best completes the following sentence? The Hawaiian Islands were formed by                .
  1. folding
  2. volcanoes
  3. glaciers
  4. faulting
Grade 4 Volcanoes
Molten rock is called        lava        after it reaches the Earth's surface.
Grade 4 Rocks
Melted rock inside the volcano is called         magma        .
Grade 4 Volcanoes
The map shows the major tectonic plates of the world. Volcanoes are more likely to form along the edges of the plates then in the middle of the plates.
Tectonic Plates With Labels
The United States is located on the North American plate. Where in the United States are volcanoes more likely to be a natural hazard?
  1. east coast
  2. west coast
Grade 4 Soil
How do plants help form soil?
  1. Plants break up rocks by spreading roots into cracks.
  2. Plant stems surround the rocks until they break.
  3. Plant leaves protect the rocks from extreme temperatures.
  4. Plants fall into rocks and release chemicals.
Grade 4 Rocks
When molten rock cools slowly, the crystals that form in the igneous rock are         large        .
Grade 4 Soil
Why is soil so important to us?
  1. We build on it
  2. We walk on it
  3. Plants need it to grow
  4. All of the above
Grade 4 Soil
Which is a soil layer?
  1. horizon
  2. topsoil
  3. subsoil
  4. All of the above
Grade 4 Volcanoes
A town plans to build a new school. The town is fifty miles from a volcano. The volcano has not erupted for a long time, but scientists say it may erupt in the future.
Volcano - Stratovolcano - Small
Which of the following is the best way to lower the risk to the students in the school if the volcano erupts?
  1. Have an evacuation plan in place.
  2. Listen for storm watches and warnings.
  3. Build the school mostly from wooden materials.
  4. Teach students to move into hallways and away from windows.
Grade 4 Volcanoes
Dormant volcanoes are asleep but they can erupt again.
  1. True
  2. False
Grade 4 Rocks
When molten rock cools quickly, the crystals in the igneous rock that form are         small        .
Grade 4 Oceanography and Hydrology
The movement of water from the Earth's surface, through the atmosphere (air), and back to the earth's surface is called the               water cycle              .
Grade 4 Soil
The soil layer that is affected most by erosion is
  1. topsoil
  2. subsoil
  3. bedrock
  4. parent rock
Grade 4 Soil
Christie is studying different types of soil. She is comparing clay, sand, gravel and silt. In which soil type will she find the smallest particles?
  1. Loam
  2. Silt
  3. Clay
  4. Gravel
Grade 4 Soil
Some plants need more water to be able to grow. Juniper trees thrive in a dry condition. They do not need much water to be able to grow. Which type of soil would be the best for a Juniper tree?
  1. Clay
  2. Humus clay mix
  3. Sandy soil
  4. Silt
Grade 4 Atmosphere
This weather instrument collects rain to see how much has fallen:              Rain Gauge             
Grade 4 Volcanoes
a cone-shaped landform that can erupt at times
  1. earthquake
  2. fault
  3. epicenter
  4. volcano
Grade 4 Geomorphology
The process of materials being moved from one place and deposited in another location is called              deposition             .
Grade 4 Volcanoes
After hot magma comes out of a volcano, what it is classified as?
  1. lava
  2. magma
  3. molten rock
Grade 4 Rocks
All rocks, on earth's surface, can weather and become sediments.
  1. True
  2. False
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