3rd Grade Science-Natural Events

What is one way to prevent wind erosion?

• Have farmers stop harvesting their crops.

• Have construction workers wet the ground before driving or digging on it.

What would most likely cause a big pile of rocks to block part of a mountain road?

• Landslide

• Tornado

• The Abominable Snowman

What is the slow process that changes the Earth's surface?

• Tornado

• Hurricanes

• Wind Erosion

Sand Dunes and arches are landforms caused by what?

• Tornadoes

• Wind Erosion

• Hurricanes

What caused the Grand Canyon to form?

• erosion of wind and water

• Landslides

• Floods

True or false: Erosion can cause a sea arch to form.

• True

• False

What causes rocks to break into smaller pieces?

• Children stepping on them

• Water freezing then thawing

• Flooding

What causes the SLOWEST change to the Earth's surface?

• Building (Construction)

• Weathering

• Farming

What do volcanic eruptions cause?

• the formation of a hill

• the formation of a new volcano

• the formation of an island

How to hurricanes negatively affect a coastline?

• flooding

• erosion

• high tides