TCI Unit 3 Lesson 1 & 2

Which of these BEST describes the atmosphere?

• All of Earth's water
• A blanket of air that surrounds the Earth
• The soil and rocks on Earth's surface
• The living things on Earth

Which of these is a description of weather?

• There are many tall mountains
• There are four different seasons
• There are clouds rolling in 
• There are many stars in the sky

Moving air in Earth's atmosphere is called

• weather
• water vapor
• humidity
• wind

_______ is what the atmosphere is like at a certain time of day.

• Humidity
• Weather
• Temperature
• Water vapor

What does temperature measure?

• how fast the wind is moving
• how much air surrounds Earth
• how much water vapor is in the air
• how warm or cold something is. 

Humidity is

• the blanket of air around Earth
• how warm or cool something is
• the amount of water vapor is in the air.
• what the atmosphere is like at a certain time. 

What are small clouds made of?

• small animals
• tiny droplets of water
• very light cotton
• slow moving wind

Which of the following is a part of weather?

• temperature
• wind
• water
• all of the above

Which is a form of water in the atmosphere?

• rain
• clouds
• water vapor
• all of the above

Water vapor is water

• that you can see when it rains
• that you cannot see in the air
• that is a form of fog
• all of the above