Life Science
When an animal best adapted to its environment survives and reproduces, we call it this
natural selection
This plate boundary is when two plates divide
divergent
Melting ice is an example of this
physical change
This is the force that pulls objects towards the center of the Earth
gravity
It takes the Earth this long to rotate on its axis
24 hours
All living things are made of these
cells
This gas is the most abundant in the atmosphere
nitrogen
Baking a cake is an example of this
chemical reaction
When you're standing at the top of a hill about to run down, you have a lot of this type of energy
potential energy
Earth is found in this galaxy
Milky Way
Consumers that eat both producers and other consumers
omnivores
Rain falling from the sky is this process
precipitation
When energy is added to particles, their movement does this
move faster/spread apart
These are the longest type of waves
radio waves
Mars is a planet made of this
The heart is a part of this body system
circulatory system
This process breaks down rocks over time and moves them to a new location
erosion
2(CH4)O2 has this many atoms
12
This is the unit of measure for force
The Sun is primarily made of these two gasses
hydrogen and helium
This process occurs in the mitochondria and makes ATP energy for living organisms
cellular respiration
This type of cloud is most associated with thunderstorms
cumulonimbus
A chemical reaction where heat is released
exothermic
The movement of heat through a fluid is this
convection
When you can't see the moon in the sky, it is called this