8th Grade Science
Energy is..
The ability to make things move or change!
Thermal contraction?
Decrease in a volume as its temperature decrease
4
What is inertia?
The law that states, objects will keep doing what they are already doing!
Thermal expansion
An increase in a volume as the temperature increases.
Name the levels of the earth in order from outside in
Crust, mantle, outer core, inner core
How old is the Earth?
4.6 Billion Years old!
Changing the temperature of a gas affects its....
behavior
We breathe in this level of the atmosphere
Troposhpere
Gravity!
When the thermal energy of a gas increases
the motions of the particles speeds up
What is the equation for photosynthesis
Carbon dioxide + energy + water = glucose/sugar + Oxygen
What direction does light travel?
IN A STRAIGHT LINE!!!
Freezing is the opposite of
Melting
Uranium has how many protons?