Intro to Environmental Science
What is an Ecological Footprint?
The amount of land required to support an individuals lifestyle - their environmental impact through the choices they make and resources they use daily.
Explain the Difference between an Observation and an Inference
Observation - Information gathered using one's 5 senses
Inference - Assumptions or ideas made because of the observations.
You slide a wooden block across surfaces of different textures: sandpaper, tile, carpet, and wood. You measure the distance the block travels after being pushed with the same force. What is the Independent Variable in this experiment?
The Surface Texture
What is the base units of Length, Volume, and Mass?
Length - Meter
Volume - Liter
Mass - Gram
What type of graph would best be used to graph Flavor of Ice Cream by number of students?
Bar Graph - categories
What negative impact did hunter-gatherer societies have on the environment?
Necessity for consistent hunting led to extinction events.
What is a Hypothesis?
A Possible Answer to a Testable Question
Students do different exercises (jumping jacks, jogging, push-ups, resting) for 2 minutes each. Their heart rate is measured afterward. What is the Dependent Variable in this experiment?
What should you always check first?
The SCALE you are measuring with!!!
What would be the best type of graph to use for the following Data:
Favorite School Subject of Students - Math 22.4% , PE 17.9%, Art 7.5%, Science 26.9%, History 10.4%, and English 14.9%
Pie Chart/Circle Graph
List 2 Positive Things and 2 Negative Things that happened during the Agricultural Revolution.
Negatives - Depletion of Soil, Slash and Burn Techniques, Deforestation
What are the 2 parts of a scientific conclusion?
State whether your hypothesis is accurate or not and why?
You apply identical stains to pieces of cloth and wash them with different detergent brands. You measure how much stain remains. Provide 3 Constants this Experiment would require.
Type of fabric, stain type, water temperature, washing time, washing machine, cycle setting, etc.
If a pencil is 14 centimeters long, how many millimeters is this?
140 mm
1 cm = 10 mm
What is type of data is best represented in a line graph?
Data that has changes over time - Stock Market, growth, etc.
What is the main reason the Industrial Revolution was a turning point for the environment?
The use of Fossil Fuels grew exponentially leading to hightened levels of Carbon Dioxide.
Give an example of using the Scientific Method in day to day life
Answers will vary - accuracy at the decision of the teacher
You add different amounts of salt (0 g, 5 g, 10 g, 20 g) to cups of water and record the temperature at which each sample freezes. Which of these tests is the Control?
The water with 0 grams of salt.
A dog weighs 18000 grams, how many kilograms is this?
18 kilograms
1kg = 1000 grams
Which type of graph would best suit a data set with A LOT of individual data points and would help identify a correlation?
Scatter Plot
Explain the Tragedy of the Commons
When everyone takes more than they need, it impacts everyone as a whole - people often pursue short term gains such as surplus or money but suffer long term loses when the resource runs out.
List the Steps of the Scientific Method in Order
Ask a Question
Do Backgroun Research
Write a Hypothesis
Conduct an Experiment
Collect and Analyze Data
Draw Conclusions
Communicate Results
Retest/Repeat the Experiment (if needed)
You fold three different designs of paper airplanes (dart, glider, and wide-wing). Each is thrown with the same force, and you measure the distance they fly. Identify the IV, DV, and 3 Constants in this experiment.
Independent Variable: Airplane design
Dependent Variable: Distance flown
Constants: Paper type, thrower, throwing force, wind speed, location, etc.
A graduated cylinder contains 1.2 L of liquid. How many milliliters is this?
1200 mL
How is a histogram different from a bar graph?
Instead of grouping values by categories, the values are representative of numerical ranges.