Scientific Investigations
Which method of the scientific method should occur after a scientist asks a question?
Making a Hypothesis
These variables are kept constant to prevent them from influencing the outcome.
Matter or Energy?
_______ is described as anything that takes up space. This consists of mass or volume.
Matter
Jean Baptiste Van Helmont discovered the presence of ______ in plants that contradicted the original hypothesis that plants ate the soil to grow.
Photosynthesis
Which two processes do the Carbon Cycle rely on?
Photosynthesis and Cellular Respiration
What type of data uses numerical information that can be measured?
For example, the study was completed 15 seconds faster by the pigeon than by the human subject.
Quantitative Data
This type of study occurs when both the scientist and the participants do not know who is in the Experimental Group or the Control Group.
Double-Blind Study
Most of the energy that drives weather, climate, and life on Earth comes from this.
The Sun
Joseph Priestly discovered that plants release Oxygen by using what as his test subjects?
Mice
How do humans interfere with the natural Carbon Cycle?
They dig fossil fuels and burn them (combustion) which releases excess Carbon into the air.
Environmental science is a complex, interdisciplinary study of the __________ and how it works with special focus on ____________ and their impact.
(write your answer as ANSWER 1 ; ANSWER 2)
This happens when someone feels better just because they think they got real medicine, even if it was fake.
The placebo effect
One 10% of energy is transferred from one trophic level to another. The other 90% is given off as heat to the atmosphere.
a) dairymaids who had cowpox, were immune to smallpox.
or
b) cowpox prevented smallpox
How much of the Earth is made of nitrogen?
78%
Which type of data uses information that relates to the five senses?
For example, the IV in group A has become more discolored (a yellowish color) than that in group B.
Qualitative Data
"If students study more, then they will receive higher scores on their tests"
What type of correlation is being described?
Positive Correlation
As one variable INCREASES, the other variable will INCREASE.
The Law of Thermodynamics follows two rules in relation to energy flow. Name one of them.
1.) Energy cannot be created or destroyed, but simply changes form.
2.) Energy can be lost to the atmosphere as heat.
Jan Ingenhousz studied plants released energy when placed where?
(think about what makes something photosynthesize)
In the presence of sunlight.
Even though water is constantly recycled on Earth, this is the reason why using it carelessly can still be a problem.
Some sources take a long time to replenish. Wasting water may cause water to run out before it replenishes.
Scenario: Susie wants to study different types of soil to see which one affects plant growth the most, what would be the Independent Variable?
the different types of soil
This is a well-tested explanation of natural events that is supported by a large amount of evidence. Explains WHY something is happening, not just what is happening.
Examples: The Big Bang, Relativity, Evolution
Two part question:
___________ is to Energy as Biogeochemical Cycles is to _________________.
Food chains/webs; matter
In Jenner's experiment of the cowpox vaccine, he used ______ as his test subjects because they have weaker immune systems that were easier for testing.
Children
Nitrogen gas has strong triple bonds, making it very difficult to break apart without large amounts of energy. Name one natural or human process that can break nitrogen apart.
1.) Lightning
2.) Nitrogen-fixing bacteria
3.) Industrial Processes