Body Mechanics
Water
Interdependence
Measurement
Lab Design
100
What are the three main organs of the circulatory system?
heart, blood, vessels
100
What is the chemical formula for water?
H2O
100
List the three types of symbiosis we studied this year.
mutualism, commensalism, parasitism
100
How is mass labeled?
grams
100
How many trials should be conducted in a well designed investigation?
at least 3
200
Describe the path oxygenated blood takes as it leaves the lungs.
left atrium, valve, left ventricles, cells of the body, right atrium, valve, right ventricle, back to the lungs
200
Why does water "climb" up a surface like a glass tube or a paper towel?
Because of adhesion or capillary action
200
What is a tertiary consumer?
An organism that eats a secondary consumer.
200
What tools would you select in order to measure the mass of an object?
scale or balance
200
What is a "testable question"?
A question whose answer can be found through experimentation
300
Where in the digestive system does most chemical digestion take place?
in the small intestine
300
What is the term that describes the movement of molecules from an area of high concentration to an area of low concentration?
diffusion
300
What do we call the factors that affect or limit the size of a population?
limiting factors
300
What tools would you select to measure the volume of an object or substance?
beaker, graduated cylinder
300
In which step of the scientific method do you list the steps, in order, that need to be followed?
Procedures
400
What are the main organs of the endocrine system called ? What is the function of these organs?
glands, to release hormones into the blood
400
What do we call "cohesion at the surface of water"?
surface tension
400
What environmental factors are needed for photosynthesis to occur?
sunlight, water, carbon dioxide
400
What is the unit of measure for density?
g/mL or g/cm3
400
What is a variable?
Any factor that can affect the outome of an experiment.
500
What are the three types of muscle tissue?
skeletal, smooth and cardiac
500
What type of weather is associated with high pressure systems?
clear skies, dry air
500
Explain two differences between plant and animal cells.
plants have a cell wall, chloroplasts, larger vacuoles
500
How would you find the density of a liquid?
divide it mass by its volume
500
If you measure the rate at which a drop of water evaporates under a heat lamp, what is the dependent variable?
the rate of evaporation (remember, the IV affects the DV)
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