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Report Text : Earthquake

Earthquake

Earthquake is a sudden shaking of the earth’s surface that often causes a lot of damage. It is the result of a sudden release of stored energy in the Earth’s crust that creates seismic waves. Earthquakes may happen naturally or as a result of human activities. Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear experiments.

At the Earth’s surface, earthquakes can be seen from the shaking or displacement of the ground. Sometimes, they cause tsunamis, which may lead to loss of life and damage of property. There are two types of earthquake that occurs naturally, they are tectonic and volcanic earthquakes. Tectonic earthquakes are earthquakes that are caused by tectonic plates getting stuck and putting a strain on the ground. The strain becomes so great that rocks give way by breaking and sliding along fault planes.

Volcanic earthquakes are earthquakes which are caused by themovement of magma in volcanoes. In volcanic regions earthquakes may be caused both by tectonic faults and by the  movement of magma in volcanoes. Such earthquakes can be an early warning of volcanic eruptions

The size of an earthquake is usually reported using the Richter scale or a related Moment scale. Earthquakes which are 3 on the Richter scale or lower are hard to notice. Whereas, those which are 7 on the Richter scale causes serious damage over large areas.

 

Iklan

Tie Dyeing Old T-Shirt

 

Things you need:

Old cotton T-shirt

Large thread or rubber band

Cloth dye

Bucket

 

Steps:

First, wash a 100 percent cotton T-shirt.

Second, place the wet shirt flat on the work surface.

Next, tie knots in the T-shirt, or twist it and secure the folds with rubber bands or heavy-duty thread.

After that, mix 1/2 c. liquid dye (or 1 package powdered dye) in 1 lt. hot water.

Dissolve 5 tbsp. table salt in the mixture.

Fifth, let the mixture cool to room temperature.

Then, put the entire shirt in the dye and let it soak for at least 20 minutes.

Next, rinse the shirt in cold water until the water runs clear.

Then, undo the knots and rinse the shirt again.

Ninth, hang the shirt to dry, out of the sun.

Materials:

  1. Old CDs
  2. Hair dryer/oven
  3. Metal bowl
  4. Glue
  5. Small saucer/something to cover the CD hole

 

Directions:

First, place the CD in a metal bowl and heat it with a hair dryer. Or put it in the oven

on low heat.

Then, bend the CD softly when it softens.

After that, let it cool off.

Finally, glue a small plastic saucer or anything to cover the hole.