GMAS 5th Grade Science Review #2- SWLE (PL)

The image shows a satellite view of a river meeting the sea and forming a triangle-shaped land area. What process mainly builds this landform over time?

• Erosion that removes soil from coasts

• Weathering that breaks bedrock pieces

• Earthquakes that lift ocean floor

• Deposition that drops river sediments

A photograph shows long ridges of sand shaped by wind in a desert. Which pair of processes most directly creates these sand dunes?

• Erosion by wind and deposition

• Tectonic uplift and folding

• Glacial scraping and melting

• Volcanic eruptions and lava flows

Which location would MOST LIKELY show damage from weathering due to ice expanding in cracks?

• River mouth where delta forms

• Open meadow with grasses

• Sandy beach beside the lake

• Shaded rock ledges on a cold slope

Students pour water over stacked sugar cubes to model erosion. Which observation would best show both weathering and erosion by water?

• Cubes stay the same shape

• Sugar dissolves and moves away

• New cubes grow from solution

• Water freezes on the cubes

Look at the photo of a sandy slope. Students want to model a landslide in class. Which setup would model a landslide most effectively?

• Stack wooden blocks and pour water on top

• Pour water over a sand pile and watch movement

• Blow a fan across dry sand in a shallow tray

• Shake a sealed jar filled with mixed rocks

A device called a seismometer detects small earthquakes near a volcano. If many tiny quakes are recorded in a short time, what is the best action for scientists to take?

• Increase monitoring and prepare evacuation plans

• Ignore readings because quakes are always harmless

• Wait for ash clouds before warning the public

• Move the seismometer farther from the volcano

This GIS map shades areas by risk level: high, moderate, and low. People living in the high‑risk zone would be most concerned about

• preventing floods in their area

• crime occurring in their area

• predicting volcanic activity nearby

• predicting earthquakes in their area

Flood alerts range from advisory to watch to warning as risk increases. Which action best protects a house when flooding is likely?

• Build only on exposed solid rock

• Leave doors open to let water pass

• Dig trenches right next to the walls

• Place sandbags to block entering water

Which tool records vibrations from earthquakes to help scientists locate and measure them?

• Telescope used by astronomers

• Seismograph used by seismologists

• Thermometer used by meteorologists

• Barometer used by sailors

Students mixed water and sugar until the liquid looked clear. What is the BEST way to separate the mixture back into its parts?

• Evaporate the water to leave the sugar

• Skim floating sugar off the surface

• Use a magnet to pull out the sugar

• Sift the liquid through a wide screen