Unit 1: Heat Transfer
What is an insulator?
Matter that does not allow energy to transfer easily.
What is evaporation?
The process of changing a
liquid into a gas due to
heating.
What is a land breeze?
Convection current where air flows from land to sea, typically during the nighttime.
What are abiotic factors?
Non-living parts of an ecosystem.
What is gravity?
A force that pulls objects to the ground.
What is convection?
Transfer of thermal energy by liquids or gases.
What is precipitation?
Form of water that falls
from a cloud to the earth:
rain, sleet, snow, hail.
What is climate?
Weather over a long period of time.
What is an aquatic ecosystem?
To live in the water instead of on the land or in the air.
What is friction?
Force that pushes against an object causing it to slow down and stop.
What object is the best conductor?
metal
The recycling of water between the earth and the atmosphere.
Water Cycle
What happens to the temperature when a warm air mass replaces a cold air mass?
temperature rises
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
They break down dead organisms to return nutrients to the soil.
Four different students take turns pushing a large, heavy ball on the school parking lot. What is the best way to determine which student used the most force to push the ball?
compare the distances that the ball rolled
What are the processes that cause the person in front of the fire to feel warm?
radiation and convection
As a part of the water cycle, the sun heats water from rivers, lakes, and the ocean turning it into "vapor" or steam and it rises into the air. Which step of the water cycle does this explain?
evaporation
Mark looks at the clouds in the sky and decides that he does not need to take his umbrella with him today. Which clouds did Mark most likely see in the sky?
cirrus
In which category are all living things most directly dependent upon the sun for energy?
producers
Christina kicks a ball. The ball moves faster when she kicks it on the concrete sidewalk than when she kicks it on the grass. Why does the ball travel slower on the grass than the sidewalk?
The grass has more friction.
What causes your skin to feel warm when it is in the sun on a summer day?
The Sun radiates energy that passes through space and the atmosphere to your skin.
The loss of water through a plant's leaves.
Transpiration
Which weather pattern has the most influence on the weather in North Carolina?
prevailing westerlies
This diagram shows a simple ocean food chain.
algae --> fish --> seal
Which will most likely occur if the fish population decreases?
The algae population will increase, and the seal population will decrease.
Marni runs 1500 meters around the school track. What does she need to know in order to find out her speed?
her time from start to finish