Our place in space
An imaginary line halfway between the North and South Poles
What is the Equater
A representation of the transfer of energy by waves
What is a wave model
The transfer of thermal energy by direct contact
What is heat
The transfer of pollen to the female part of the flower
What is pollenation
A collection of living and non-living things that interact
What is a ecosystem
A planet made up mostly of rock and metal
What is a terrestrial planet
The transfer of energy into an object
What is absortion
A material that conducts thermal energy well
What is a conductor
The hardy part of a flowering plant capable of growing into an adult plant
What is a seed
Species that are key to keeping an ecosystem stable
What is a keystone speicies
A hemisphere experiences this when it's tilted towards the Sun
What is Summer
A type of energy that travels in electromagnetic waves
What is light
Particles gain energy and spread out.
What is expanding
The collective name for the male parts of a flower
What is a stamen
A living thing; something that carries out life processes
What is an organism
The Sun and all the objects that orbit around it
What is the Solar system
The number of waves that go by in one second
What is frequency
Particles lose energy and move closer together.
What is contraction
contraction is the process of the atoms moving closer together
The beginning of the development of a seed into a plant
What is germination
Unable to be squeezed into a smaller space
What is incompressible
The time it takes a planet to orbit once around the Sun
What is a year
The height of a wave measured from the middle
What is amplitude
Electromagnetic waves that can't be seen but can be felt as heat
What is infrared radiation
A small hole in a leaf that allows gases to enter and leave
What is a stoma
A phenomenon where worker bees leave a hive and don't return
What is colony collapse disorder