Plant Life Cycles
What part of the flower makes pollen?
stamen
How many decibels is the danger line for sound volume?
85 dB
What causes air pollution? Name one.
factories, cars, power plants, heating, etc.
stages of life from birth to death
life cycle
rain and snow that falls from the clouds
precipitation
Whats the female part of the flower holding the ovary?
carpel
What part of the ear collects sound from the outside and then leads to the ear canal?
pinna
Why is air pollution bad?
makes people sick, makes animals sick, makes plants sick, etc.
The variable you keep the same in an investigation
control variable
changing to fit a new situation
adapt
What are the little green leaves protecting the flower bud?
sepals
What causes sound?
vibrations
How does blowing up a balloon show us that gas is a state of matter?
solids that cannot dissolve in liquid
insoluble
When vapor turns into liquid
condensation
What is the stalk of the anther called?
filament
Give an example of an environment that is dangerously loud?
construction, sporting events, music concerts, fireworks, etc.
A very small piece of matter
particle
The variable you change and test in an investigation
independent variable
The variable you measure in an investigation
dependent variable
Why can't flowers and fruit be on a tree at the same time?
because flowers come before fruit in the plant life cycle.
What part of the ear uses liquid to transfer sound waves into signals to the brain?
cochlea
when air contians harmful chemicals
air pollution
to bring pollen to an egg so seeds can form
fertilize
whne liquid turns into gas
evaporation