Presentation on theme: "6.2 Activity 4 Corners. Human Impact Residents City officials Government employees – schools, hospitals, ss, Business owners Restaurants, car dealers,"— Presentation transcript:
Human Impact Residents City officials Government employees – schools, hospitals, ss, Business owners Restaurants, car dealers, stores
Social How do humans impact our city socially? Are people healthy? Do they have health care? Eat healthy? Does our city officials support healthy environment? Is there a healthy economy? Do the people care about the environement? Is there public transportation? Sidewalks, bike paths?
Biological How do humans impact our living plants and animals? Do we take care of our creatures? Do they have homes and adequate food? Do we plant gardens? Are trees and grass and plants healthy? Do you notice animals? What kind?
Physical How do humans impact our physical city? Are there a lot of buildings? Are the buildings maintained? Are the roads maintained? Is our town pretty? What is the quality of our roads? Where is there vegetation? Are our parks maintained?
Chemical How do humans impact our city chemically? What is our air quality? Do we have safe drinking water? What is our soil quality? Will plants grow? Is there pollution from sewage, factories, or littering?
Journal 18 Choose one aspect of our city Biological Physical Social Chemical Write a 5 sentence paragraph reflecting on what you learned, what surprised you, or made you mad What can we do to change things?
Journal 19 What are the characteristics of a good research questions? Describe a good question Provide 2 examples: one good questions and one bad question Be prepared to share your examples!!!
What makes a good research question? It cannot be answered “yes” or “no” Testable Includes dependant and independent variables Be specific
Variable Cause and effect – Look for changes Variables: Changing quantities Independent Dependent Controlled.
independent variable CAUSE The one that is tested by the scientist. Only one independent variable Observe changes the independent variable and record changes
dependent variable EFFECT Responds to the independent variable Measurable and recordable data
Example If you open a faucet (the independent variable), the quantity of water flowing (dependent variable).
controlled variables Quantities that remain constant Observed carefully as the dependent variables change "constant variables."
QuestionIndependent Variable (What I change) Dependent Variables (What I observe) Controlled Variables (What I keep the same) Does heating a cup of water allow it to dissolve more sugar? Temperature of the water measured in degrees Centigrade Amount of sugar that dissolves completely measured in grams Stirring Type of sugar "More stirring might also increase the amount of sugar that dissolves and different sugars might dissolve in different amounts, so to insure a fair test I want to keep these variables the same for each cup of water."
QuestionIndependent Variable (What I change) Dependent Variables (What I observe) Controlled Variables (What I keep the same) Does fertilizer make a plant grow bigger? Amount of fertilizer measured in grams Growth of the plant measured by its height Growth of the plant measured by the number of leaves See Measuring Plant Growth for more ways to measure plant growth Same size pot for each plant Same type of plant in each pot Same type and amount of soil in each pot Same amount of water and light Make measurements of growth for each plant at the same time "The many variables above can each change how fast a plant grows, so to insure a fair test of the fertilizer, each of them must be kept the same for every pot."
QuestionIndependent Variable (What I change) Dependent Variables (What I observe) Controlled Variables (What I keep the same) Does an electric motor turn faster if you increase the voltage? Voltage of the electricity measured in volts Speed of rotation measured in revolutions per minute (RPMs) Same motor for every test The motor should be doing the same work for each test (turning the same wheel, propeller or whatever) "The work that a motor performs has a big impact on its speed, so to insure a fair test I must keep that variable the same."
If…Then statement Hypothesis If, is the Independent variable; it is testable; an experiment could be set up to test the validity of the statement. Then, is the dependent variable; your predicted response
Bias When the experiment lacks the proper amount of controls which can cause some outcomes to be favored over others Do NOT be biased
Lenses The different ways to look at urban ecology
Activity You will each get 1 lens card You will go out to your site At the site you will develop your own research questions You need 3 questions