Show:
Ecology
Ecology Part 2
Chemistry
Physics
Stuff
100
What is the driving force for all ecosystems?
The sun
100
What organelle does photosynthesis occur in?
Chloroplast
100
What does the atomic number of an element represent?
Number of protons which is also the number of electrons in a neutral atom.
100
What is a scalar quantity?
A quantity that includes a magnitude (measurement) but not direction. Ex. time
100
What is the name of FeO?
Iron (II) Oxide
200
Which pyramid is impossible to invert? (Change the shape of)
The pyramid of energy flow.
200
What is the process that breaks down glucose and releases energy along with water and carbon dioxide?
Cellular respiration
200
What do metals tend to do with their electrons to achieve a full valence shell?
Give them away - they become positive cations.
200
How do you calculate displacement?
Df - Di --> Final position minus Initial position
200
It has been said that Winnipeg was recently as cold as which planet?
Mars
300
The conversion of energy from the sun to chemical energy found in glucose is?
Photosynthesis
300
What are 4 factors that can limit population size?
Materials/energy, food chains, competition and density.
300
What do non metals do with electrons to achieve a full valence shell?
Gain them - become negative anions.
300
Which directions have a negative value?
Left, West and South
300
Who went to the Pink Concert last week?
Karly
400
The build up of excess fertilizers containing nitrogen in aquatic ecosystems is known as?
Eutrophification
400
What is biomagnification?
It is the increase in concentration of a toxin or pesticide as it works its way up a food chain. Ex. DDT or PCBs
400
Metal + non metal = ______________ Non metal + non metal = ______________
Ionic Covalent
400
What is inertia?
The tendency of an object to keep doing what it is doing
400
What is the formula for dinitrogen tetrafloride?
N2F4
500
What is the role of nitrogen fixing bacteria?
Convert nitrogen gas to nitrates.
500
What is a population?
Group of species living in an area.
500
What is cation in CaCl2?
Calcium
500
What is newton's 3rd law of motion? Give an example.
For every reaction there is an opposite and equal reaction.
500
How much money did Murdoch Mackay raise and donate to Coats for Kids?
1800 dollars.