Category 1: Resources & Sustainability
Which two items are considered renewable resources: cows, a tractor, apple trees, or a barn?
Cows and Apples
What does a person’s ecological footprint measure?
The total land and materials needed to support all of that person’s activities. (Land, Water, Waste)
In the hypothesis "The temperature of the Earth will rise as carbon dioxide is increased in the atmosphere," what is the independent variable?
Presence/increase of carbon dioxide.
As the temperature of water increases from 1 degree Celsius to 30 degrees Celsius, what happens to the level of dissolved oxygen in the water?
it decreases
What happens to the availability of nonrenewable resources over time as human consumption of energy increases?
It decreases their availability.
Which daily activity increases your ecological footprint: walking to school, eating less meat, or driving a large car around for fun?
Driving a large car around for fun
In that same hypothesis, "The temperature of the Earth will rise as carbon dioxide is increased in the atmosphere,", what is the dependent variable?
Temperature of Earth
Detergent 1 produced 10 mL of suds, Detergent 2 produced 8 mL, Detergent 3 produced 2 mL, and Detergent 4 produced 5 mL. Which detergent hypothesis was supported as producing the most suds?
Sample/Detergent 1.
Natural assets that can be renewed within our lifetime (such as solar and wind) are known as what?
Renewable resources.
Name three factors that are included in calculating your ecological footprint.
Waste production, water use, and land use.
Why is it crucial for a scientist testing a plant treatment to include a control group?
To show that the results are caused by the treatment and do not just happen naturally.
Garden plants near a sidewalk look wilted (10 cm tall) in dry/compact soil, while plants in the middle of the garden are green (25 cm tall) in loose soil. What is the best hypothesis to test?
Soil moisture affects plant growth.
What term describes the maintenance of natural resources so they are not damaged or completely used up?
Sustainability
What is the main overall goal of environmentalism?
To reduce human impact on the environment.
A researcher tests different fertilizer types (Nitrogen & Phosphorus vs. Phosphorus & Potassium) to see how much runoff each produces. What is the independent variable?
Type of fertilizer
Based on the garden observation data, what is the best scientific conclusion?
Proper soil moisture helps maximize plant growth.
Name two specific examples of nonrenewable resources from the test.
Coal, Oil, Gas, or Nuclear energy.
Categorize the following into Renewable vs. Non-Renewable: Solar Energy, Wind, Nuclear, Gas, Coal.
Renewable: Solar Energy, Wind
Non-Renewable: Nuclear, Gas, Coal
Four radish plants (A, B, C, D) are given the exact same amount of water but are exposed to different music genres (None, Jazz, Country, Rock) to measure height. What is the best hypothesis for this test?
Plants exposed to music will grow taller than others.
What is the graph's dependent variable when measuring dissolved oxygen levels across different temperatures?
Dissolved oxygen level.