Earth Detectives
What force keeps planets in orbit?
Gravity
What is water called because it dissolves many substances?
Universal solvent
What is a watershed?
Land area that drains into a body of water
Solid to Liquid is....
Melting
What variable do you change?
Independent Variable
What causes day and night?
Day and night
Water sticking to water is called what?
Cohesion
What major Virginia watershed do we live in?
Chesapeake Bay watershed
Liquid to Gas...
Evaportation
How many variables can be manipulated (Changed) in an experiment
1
Which object mostly causes tides?
The Moon
Water sticking to other surfaces is called what?
Adhesion
What type of ecosystem is the Chesapeake Bay?
Estuary
Gas to Liquid
Condensation
Where do we get our fresh water ?
Surfaces of lakes and rivers
Name the inner (rocky) planets.
Mercury, Venus, Earth, or Mars
What property allows insects to walk on water?
Surface tension
Name ONE thing that harms watershed health.
Pollution, runoff, erosion, development
Liquid to Solid
Freezing
What Element makes up most of the air we breathe ?
Nitrogen
Why can Earth support life? (3 Reasons)
Liquid water, atmosphere, or moderate temperatures
What temperature would you find water as a solid ?
0 Celcius
What is runoff?
Water that flows over land carrying pollutants
What happens to particles when heat is added?
They move FASTER
*Double Points* What is the main factor that controls the quality of life in water?
Temperature