Show:
Heat
Conduction
Radiation
Convection
Density
100
Molecule movement
What is heat?
100
Energy moves from one material to another by touching each other.
What is conduction.
100
The sun.
What is the major source of energy that heats the atmosphere?
100
Hot water has higher than cold water.
Which one has the highest density, hot water or cold water?
100
D = M / V
How do you measure density?
200
Solid, liquid and gas.
What are the three states a matter can have?
200
Aluminum.
Which material conducted heat the best, steel or aluminum?
200
It travels thorugh space.
How does the solar rays travel from the sun to the earth?
200
Becuase hot water has less density than cold water.
Why does hot water layer on top of cold water?
200
Grams (g)
What is the unit for mass?
300
Temperature.
How do we measure heat?
300
Because the molecules in the water move faster than the molecules in the ice cube.
Why is ice cubes solid and water a liquid?
300
It heats up the land and water.
What are the two main things sun rays heat up?
300
The mass movement of warm air upward.
What is convection?
300
Cubic centimeters (cc) or milliliters (ml).
What is the unit for volume.
400
Kinetic Energy.
What is the energy of movement called?
400
The molecules are moving fast.
How are the molecules in a matter moving when something has a lot of heat?
400
Radiation
What is the name of the heat transfere that happens between the sun and earth's materials?
400
Because of kinetic energy and larger movement of the molecules.
Why does warm air expand?
400
Because the blue salt solution had the highest density.
Why did the blue salt solution sink to the bottom during our experiment?
500
Materials heating up at different rates.
What is differential heating?
500
The molecules are almost standing still.
How does the molecules move in a solid?
500
Soil
Which earth material heated up the fastest during our experiment?
500
The warm air expands due to increased energy.
What happens when energy transfer to a mass of air?
500
10 g/ cc when the mass is 100 grams.
What is the denisty of a substance when the mass is 100 grams and the volume is 10 cc?