CER Explanation Tool

Question:
What is the scientific question you are investigating?
“Why do we eat?”

Evidence
What are the science observations or data that address/relate to your question? You may bullet point here.

Scientific Reasoning
How can you explain the evidence you have observed/collected to answer the question? You may bullet point here.


Claim
What claim can you make that answers the question, based on your evidence, reasoning and science concept(s)? Single sentence without using the word “because” in your sentence. Construct a Scientific Explanation

Using the information in the boxes you have completed, write a scientific explanation that includes:

The scientific question
Your Claim
Relevant evidence that supports your claim
Scientific reasoning that links the evidence to your claim and explains how the evidence answers the question
Check the rubric (last page) BEFORE you submit this!

Scientific Explanation:
There are four main macromolecules that we eat – carbohydrates, lipids, proteins and nucleic acids. Each of these macromolecules plays an important role in our bodies and provides us with energy and essential nutrients. Carbohydrates are essential for providing our bodies with energy. They are broken down into glucose, which is then used by our cells for energy. Complex carbohydrates, such as those found in whole grains, also provide our bodies with important vitamins and minerals. Lipids are another important macromolecule that we eat. They are a major source of energy and help to keep our cell membranes healthy. Fatty acids, which are a type of lipid, are also essential for many biochemical reactions in our bodies. Proteins are essential for the growth and repair of our bodies. They are also involved in many biochemical reactions and help to transport nutrients and oxygen around our bodies. Amino acids, which are the building blocks of proteins, are also essential for our bodies. Nucleic acids, such as DNA and RNA, are essential forthe function of our cells. They are also involved in the synthesis of proteins and the regulation of gene expression.