Unit 2 Lesson 9: Reliable Sources Flashcards
What is a scientifc explantion?
a statement supported by evidence that provides a reason for a natural scientific phenomenon
Give an example of a scientifc explantion?
biomolecules have similar chemical compositions because they are made up of carbon, oxygen, and hydrogen elements. This explanation is supported by evidence that developed over centuries of scientific research.
Who made the periodic Table?
Russian scientist Dmitri Mendeleev. Mendeleev’s
Describe the history of the peridoic Table?
The first Periodic Table of Elements was developed in 1869 by Russian scientist Dmitri Mendeleev. Mendeleev’s table had 63 elements. Over time, more elements were discovered. Currently, the Periodic Table has 118 elements.
When scientists develop a scientific explanation, they need to ensure that..
their explanation is supported by reliable and valid information.
In science what does validity mean?
accuracy
What is a reliable source?
A reliable source is information that can be cited and that provides consistently valid information on scientific topics.
Why should info be peer-reviewed?
This information is peer-reviewed to determine its validity and reliability.
What are signs of a realiable resouseces?
Reliable sources of information are written by scientific experts, and their accuracy can be verified by corroborating the information with other reliable sources. Scientific journals are excellent sources. If a source cites multiple scientific journals that validate its claims, this is a strong sign that the source may be reliable.
Give some examples of reliable source
University websites and certain government websites, such as NIH.gov (National Institutes of Health), can also be reliable sources. Online simulations or models created by scientists can be reliable sources of information as well.
Use at least two reliable sources to explain why amino acids and glucose have similarities in their atomic structures.
glucose is a 6-carbon sugar that has oxygen and hydrogen in its chemical structure. Amino acids also contain carbon, oxygen, and hydrogen. Answers should explain that plants make the amino acids they need from glucose, which explains the similarity in their atomic makeup.
In the human body, sugar can be used to create fats.
Answers should use models from reliable sources to explain that sugar and fats have the same basic elements (carbon, hydrogen, and oxygen). Answers can have models or text evidence to explain that extra sugar in the diet can be stored as fat.
Does a biased study always mean that the study is inaccurate? Explain your reasoning.
No, it does not. However, the study’s results should be replicable by scientists who lack this particular bias.
You read a list of nutrition tips on a website. What steps would you take to determine whether this information is scientifically sound?
I would corroborate the information with a reliable source, such as a hospital website or a nutrition site run by people who have degrees in nutrition. I would ask my doctor or healthcare provider about the diet.
