Which food chain is in the correct order?

• grasshopper --> grass --> snake --> frog --> hawk
• grasshopper --> frog --> hawk --> snake --> grass
• grass --> grasshopper --> frog --> snake --> hawk
• grass --> grasshopper --> snake --> frog --> hawk

Sometimes the weather in North Carolina is affected by air masses moving from the Gulf of Mexico.  Which best describes these air masses? 

• cold and moist
• warm and moist
• cold and dry
• warm and dry

Most warm and cold air masses that enter North Carolina are moved by global winds. Which global winds are responsible for most of the local weather in North Carolina?

• prevailing easterlies
• trade winds
• polar westerlies
• prevailing westerlies

Two people are each pulling on the opposite ends of a rope. If they are pulling on the rope with equal but opposite forces, what will happen to the rope? 

• It will stay in place between the two people
• It will move toward the right
• It will move toward the left
• It will fall to the ground

Which statement best describes what must happen in order for a person to lift an object? 

• The force of gravity must be greater than the mass of the object. 
• The mass of the object must be greater than the force of gravity
• The force of gravity must be greater than the upward pull or push on the object. 
• The upward pull or push on the object must be greater than the force of gravity. 

What increases as a rock falls to the ground? 

• the density of the rock
• the pull of gravity on the rock
• the inertia of the rock
• the momentum of the rock

During evaporation, which change best describes what happens to water

• a gas changes to a liquid
• a gas changes to a solid
• a liquid changes to a gas
• a liquid changes to a solid

Where do climate conditions cause hurricanes to become larger and more powerful? 

• over warm water
• over cold water
• over mountains
• over dry, flat land

A student is riding a bike and applies the brakes.  Which most helps the bike to stop? 

• friction
• gravity
• heat
• momentum

A car moves along a road that has markers every kilometer. Over time, it passes the markers in shorter periods of time. Which best describes the motion of the car? 

• The car is keeping the same direction
• The car is maintaining the same speed
• The car is increasing speed
• The car is changing direction