Explanation Text

There are mainly four forces that contribute to flying an airplane. They are Weight, Thrust, Drag, and Lift. How do those work? First, to move an airplane forward, the Thrust created by the engines must be greater than the force produced by the air resistance called Drag.

Second, to move the airplane upward, it needs enough forward motion. The airplane can only fly if the force of Lift is much greater than in Weight. This process can push an airplane to fly.

What is the force that moves an airplane upward called?

• Weight

• Lift

• Drag

• Thrust

Do you know that airplanes can generate energy? That is why this object can fly, because of the force. Such a force, scientifically called a Lift, can move an airplane upward.

How can airplanes generate energy to fly?

• Wind power

• Solar power

• Electric power

• Force

Now, almost every day we see planes flying above. Inside, there are hundreds of people sitting, walking, and even running. Have you ever wondered why such a heavy metal object can float so freely in the air? How can airplanes fly like birds?

Do you know that airplanes can generate energy? That is why this object can fly, because of the force. Such a force, scientifically called a Lift, can move an airplane upward.

What is the type of the text above?

• Explanation

• Report

• Exposition

• Descriptive

First, to move an airplane forward, the Thrust created by the engines must be greater than the force produced by the air resistance called Drag.

Second, to move the airplane upward, it needs enough forward motion. The airplane can only fly if the force of Lift is much greater than in Weight. This process can push an airplane to fly.

The chronological connections from the text above are ......

• Drag and Weight

• Lift and Weight

• First and Second

• Force and Fly

Now, almost every day we see planes flying above. This sentence is ......

• Passive Voice

• Simple Present Tense

• Simple Past Tense

• Connection

Snow happens when water vapor piled up in the earth’s atmosphere freezes. It happens before they turn into water droplets. This process occurs when the temperature in the cloud becomes very frigid.

Snow happens because of ......

• Water droplets

• Temperature in the cloud

• Cloud

• Water vapor freezes

Snow happens when water vapor piled up in the earth’s atmosphere freezes. It happens before they turn into water droplets. This process occurs when the temperature in the cloud becomes very frigid.

The purpose of the text is .....

• To explain water droplets

• To tell readers about snow

• To know the process of water vapor

• To explain how snow happens

Snow happens when water vapor piled up in the earth’s atmosphere freezes. It happens before they turn into water droplets. This process occurs when the temperature in the cloud becomes very frigid.

The word 'frigid' can be replaced with ......

• cold

• clumsy

• cool

• gloomy

Seasonal change today is impossible to predict. Scientists believe that it is all because of global warming. We can notice this when the summer gets warmer and the winter gets colder.

Usually, seasons change because of the sun’s revolution. In the summer, our earth’s position leans toward the sun. This makes some parts of our earth get hotter since they get closer to the sun.

What is the text above?

• The sun's revolution

• Seasonal change

• Global warming

• Summer and winter

Solar radiation on the earth's atmosphere makes the ozone layer get thinner and makes the sunlight that shines on the Earth become hotter. The greenhouse effect also causes the sunlight which is reflected back onto space is reflected back into the earth. This phenomenon causes the earth continuously get hotter. This condition is known as global warming.

These are what make global warming, EXCEPT .......

• Greenhouse Effect

• The earth gets hotter

• Sunlight

• Solar radiation