A
Duck
Is
Gonna
Quack
100
What is the smallest unit of an element that still has the chemical properties of that element?
Atom
100
Why do tires lose air pressure when the outside temperature drops significantly?
The decrease in temperature means that the molecules are moving slower, and getting more dense (closer together)
100
A is representing ___. It is formed due to what type of boundary?
Mid - Ocean Ridge (Divergent Boundary)
100
Include the number of oxygen atoms in that reaction.
D (6 oxygen atoms)
100
Macroinvertebrate samples were collected from four streams. Using the chart below, arrange the sequence of the healthiest to most polluted streams. 
Stream 2
Stream 4
Stream 1
Stream 3
(Higher Biodiversity / number of species = Healthier Ecosystem)
200
What, if any, of these foods have the same sugar. 
Honey and Apple
200
What gas is used by producers to give them most of their mass?
Carbon Dioxide
200
B is representing ___.
Oceanic Crust
200
C
200
What is the primary role of the decomposers in this food web?
To make nutrients available for the producers by breaking down organic matter.
300
What is the law of conservation of mass?
Matter (mass) cannot be created nor destroyed
300
What are the two reasons organisms need food?
Energy and building materials for cells
300
C is representing _________. It is formed by what type of boundary?
Trench (Convergent Boundary)
300
A chemical reaction in which calcium carbonate, CaCO3, is decomposed results in the production of two simpler compounds.
What mass of calcium carbonate, to the nearest whole gram, is decomposed in this reaction?
50 g
300
A bacterial infection has spread throughout the pine borer population. What is likely to happen with the fox population? Why?
The fox population will decrease due to a lack of resources (Kinglet and Salamander will decrease)
400
Is this a chemical reaction? Why?
No, the molecules are the same before and after. This is a phase change.
400
Everyone gets the points if EVERYONE sings the photosynthesis song together.
WE LOVE PHOTOSYNTHESIS
IT GIVES US OUR AIR
H2O + CO2 THROW SOME SUN IN THERE!
OUT COMES FOOD AND OXYGEN
BOTH THINGS WE ALL USE
WE LOVE PHOTOSYNTHESIS
FOR ALL THE THINGS IT DOOOOOOOZZZZZZ
400
What is happening to the temperature while this substance boils?
It stays the same.
400
During an investigation, a student combined two clear, colorless solutions shown below.
During this process in the beaker with compound A, the temperature of the flask decreased. What type of chemical reaction is this?
Endothermic
400
At which location are earthquakes least likely to occur? 
1 (Away from plate boundaries)
500
What is this phase change? 
Sublimation (solid to gas)
500
Plate tectonics is powered by what type of energy?
Geothermal Energy
500
What line is representing a liquid?
C-D
500
What is the chemical formula for this molecule?
CH3OF
500
In this food web, which organism is converting solar energy into chemical energy?
Phytoplankton