Destructive & Constructive Forces of

NatureBy: J.C.- Ms. Hernandez (5th

grade)

Students erupting a

volcano with baking

soda and vinegar!

Volcano: a mountain formed by lava and

ash.

Lava is magma that reaches the Earth’s

surface. Volcanoes push up new rich soil

to the surface.

They form on the plates in the Pacific

Ocean

Tornadoes: a spiral shaped wind storm

Tornadoes are common in the middle

of the U.S.

Tornadoes are like spinning tops.

Spiral shaped cones

Destroy buildings/homes

Hurricanes occur in the oceans. The

eye is in the center of a hurricane.

Hurricanes bring about tropical storms.

Strong winds Heavy rains causing floods.

Earthquakes: shaking of the ground.

Japan recently had 3

earthquakes.

Fault: crack in the Earth’s crust.

EarthquakesCalifornia gets a

lot of earthquakes.

Fault: a crack in the Earth’s crust.

Seismograph (instrument) Richter scale

measures the magnitude or strength of an

earthquake

Tsunami: a HUGE wave

Thunderstorms:thunder, lightning & rain

Lightning is Electricity!Double Trouble! A man struck by

lightning!

Wildfires: forest fires out of control.

Forest fires: killing our trees=

our oxygen.

Firefighters risk their lives.

Wild Forest FiresSmokey the Bear helps to educate

about fires.

Humans / campfires

In danger of burning this beautiful home in

the mt.

Trying to prevent Flooding.

Building a barricade.

Filling in sand bags.

Floods:destroy roads/ homes.

Cars stuck.Getting out and

staying in a shelter.

Mass Movement- Mudslides can

bury homes, cars, and people.

A mudslide is a downhill

movement of rock & soil

because of gravity.

BOULDER: a huge rock

Acid Rain: polluted water with chemicals that destroy

statues.

Water erosion: rocks over time become round and

smooth.

Weathering & ErosionWaves crashing against rocks.

A big chuck departed.

Weathering & ErosionShape new landforms.

Beautiful art landforms.

Weathering: water freezes (ice) expands and breaks

down rocks.

Water ErosionWater eroded the soil leaving the roots exposed.

The beach house- waves eroded the

soil.

Deposition: moving sediment into a NEW

LOCATION. Sediment moving down the river and pouring into the delta- mouth of the river.

Changes to the Earth’s surface create new

landforms.

By: J. C. (Jacob Ryan Cabrera)

Ms. Hernandez’s -- 5th grade Science

class