Forces and Motion
What can make an object stop, speed up, slow down, or change direction
What is a force
source of most of the energy people use
What is radiation from the sun
What direction does weather in the U.S. move
what is West to East
What body system includes the lungs and mouth?
What is the respiratory system
What body of water contains salt and fresh water?
estuary
The amount of matter in an object
What is mass
How do you heat your hands from a campfire?
radiation
What is the primary cause of wind speed?
air pressure
What is height an example of?
inherited trait
The East Coast has a warmer climate because of the
Gulf Stream
All matter has
mass
Cooking food in the microwave is heated by
What causes changes in seasons?
Earth's tilt
What system includes the stomach and intestines?
digestive
Name an ecosystem without many trees
desert, grassland, or tundra
Cells with specialized functions are
multi-celled organisms
What changes when the force of gravity changes?
weight
When water vapor returns to liquid it is called
What is your personality an example of?
acquired trait
When liquid from plants becomes a gas it is called
transpiration
Distance over time equals
When hot coffee warms up a spoon inside it it is called
convection
North America's weather is mostly controlled by
prevailing westerlies
What system includes the brain, spinal cord, and the nerves?
the nervous system
Something that holds in heat or cold is called an
insulator