Science Review 1

Michael observes the air pressure daily. Over the last couple of days the air pressure has been dropping. What weather will Michael most likely observe as a result?

• increasingly clear skies and more

  wind

• increasingly clear skies and dry weather

• increasingly cloudy skies and possible storms

Which best describes why wind movement is predictable?

• Air moves from areas of low altitude to areas of high altitude.

• Air moves from areas of high pressure to low pressure.

• Air moves from areas of low pressure to high pressure.

Global winds over the United States blow in which direction?

• East to West

• North to South

• South to West

• West to East

Westerly winds moving across the deserts of the United States toward the East Coast most likely bring which types of conditions to North Carolina?

• cool and dry

• hot and dry

• cloudy and humid

• clear and humid

When a low pressure system moves into North Carolina, which kind of weather will most likely occur?

• cold and dry

• fair and sunny

• clear and humid

• rainy and windy

Which best describes why winds at the beach change direction between day and night?

• because the temperatures over land and over water change

• because warm air over land sinks and stays in place over land

• because cool air rises and is replaced by warm air from the ocean

• because cool air sinks and stays in place over land

The gravitational force of the Sun is strong enough to hold all the planets of the solar system in orbit many millions of miles away. Which BEST describes why objects having far less mass on the surface of these planets are not pulled off and into the Sun?

• The objects have too little mass to be affected by the Sun.

• The objects have more mass on the planets than on the sun.

• The objects are held by the greater combined gravity of all the planets.

• The objects are more strongly affected by the gravity of the planet on which they are found.

What force is needed to help stop a child from slipping on ice?

• gravity

• friction

• electric

• magnetic

A spring is attached to a table. Students investigate the motion of a marble when it is launched by a spring. When the students push back the spring, what is the MOST likely path of the marble?

• 
• 
• 
• 

Look at the diagram of the water cycle. In the cloud marked with a question mark, what process in the water cycle is taking place?

• Absorption

• transpiration

• Condensation

• perspiration