Investigating the Natural World

Volcanoes create new land on the Earth’s surface when -

• lava flows cool and harden to form rock

• an eruption destroys the side of a mountain

• saltwater touches lava and changes into steam

Which of the following most likely caused the change to the Earth’s surface illustrated here?

• Landslide

• Thunderstorm

• Tornado

• Earthquake

A landslide is most likely to be caused by -

• Strong winds

• Heavy rains

• Breaking rocks

• Cold weather

The picture shows an island in the middle of the ocean that increased in size in only a few weeks. Which of the following most likely caused this rapid change in the island?

• Weathering of rocks

• Movement of waves

• Eruptions of a volcano

• Piling up of sand

An earthquake may cause all of the following EXCEPT —

• landslide

• tornadoes

• tsunamis

• road damage

Identify the set of landform models that is correctly labeled.

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What natural resource has minerals from rocks and decaying plants and animals?

• Plants

• Animals

• Soil

• Fresh water

How can animals become part of the soil?

• The animals makes his/ her home in the ground.

• The animals droppings will decompose on the ground.

• The animals plant flowers and roots.

• The animals stir the dirt.

The destructive movement of materials from one place to another by wind, water, ice and gravity?

• Weathering

• Deposition

• Erosion

_____________ forms slowly.

• Layers

• Bacteria

• earthworms

• Soil