Thursday
October 23, 2014

Homework Help: 7th grade Science help

Posted by Delilah on Wednesday, September 26, 2012 at 7:51pm.

1.
_______ is energy that flows from an object with a higher temperature to an object with a lower temperature. (1 point)

Heat
Radiation
Potential
Chemical

2.
The transfer of energy that occurs when molecules bump into one another is called _____. (1 point)

radiation
conduction
convection
condensation

3.
When Earth receives energy from the sun, _____. (1 point)

some is reflected back into space
some is absorbed by the atmosphere
some is absorbed by land and water on Earth's surface
all of the above


Thanks!!!
-Delilah :)

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