Unit 1: Scientific Processes

Question 1

Generally, what does scientific study involve? What is this process called?

Answer 1

1. Defining a question
2. Gathering Information
3. Forming and testing a hypotheiss
4. Collecting and analyzing data
5. Retesting and drawing conclusions
6. Publishing results

This is known as the scientific method.

Question 2

How is replication a limitation of science?

Answer 2

When you investigate or experiment, you are trying to replicate something that happens naturally. Replication is close to what happens naturally, but it is not the same thing. This is a limitation of science because science gets close to the natural event, but it is not exactly the same.

Question 3

How is not being able to make value judgements a limitation of science? How is compact fluorescent light bulbs an example?

Answer 3

Science is not capable of making value judgements. This means you cannot use science to determine right or wrong. For instance, while compact fluorescent light bulbs use less energy, and science has shown that using less energy is good for the environment and cuts costs, a scientist cannot say that someone who does not use compact fluorescent light bulbs is irresponsible, as this is a value judgement.

Question 4

How is science always changing a limitation of science? What is a historical example of this?

Answer 4

Science is constantly changing. This means that the scientific knowledge that we have is also subject to change, as we can only use available evidence to build upon our knowledge. A historical example of this is the battle to accept the heliocentric model.

Question 5

What are the best practices for lab safety (name 8)?

Answer 5

1. Wear safety goggles or chemical-splash goggles to protect your eyes.
2. Do not wear loose clothing or jewelry. Always roll up long sleeves.
3. Tie back long hair.
4. Wear closed-toe shoes.
5. Wear gloves when handling chemicals that can damage skin.
6. If skin comes in contact with a hazardous chemical, wash the skin thoroughly with lots of water. Use a safety shower is one is available.
7. If chemicals enter the eyes, flush immediately with water or at an eyewash fountain.
8. Know the location of the fire extinguisher and how to use it.

Question 6

What is the proper procedure for disposal of non-hazardous materials?

Answer 6

For disposal of non-hazardous materials, flush down the drain or put in the trash or recycling container.

Question 7

What is the proper procedure for disposal/storage of plastic and glass materials?

Answer 7

For plastic and glass materials, store them in a safe place. If they had chemicals inside them, clean thoroughly.

Question 8

What is the proper procedure for disposal of acids?

Answer 8

Pour acids down the sink and run lots of water, or store in a safe location.

Question 9

What is the proper procedure for disposal of potentially pathogenic bacteria?

Answer 9

To properly dispose of potentially pathogenic bacteria, you should place them in a biohazard bag and incinerate.

Question 10

How do you refer to the practice of working outside the lab in science? What are the safety procedures in this line of scientific work?

Answer 10

Some scientists work outside of a lab in a natural environment, known as working in “the field.” Safety procedures for field work can vary depending on the location. When working in the field, know the physical and environmental hazards in the research area ahead of time. Then pack and plan accordingly.