OMS Science HW 2: The Practice of Science

Which statement is necessary in order for a scientific investigation to be valid?

• The investigation must be able to be repeated by others.

• The investigation must produce data that can be graphed.

• The investigation must follow all the steps of the scientific method.

• The investigation must have a conclusion that matches the prediction.

Tags

NGSS.MS-PS2-5

What happens if the results of a scientist's experiment are NOT similar to the results gathered by other scientists doing the same experiment at a later date?

• The results of the experiment are changed by the scientists.

• The results of the experiment are published in scientific journals.

• The results of the experiment are questioned by the other scientists.

• The results of the experiment are accepted by the scientific community.

Scientists frequently repeat the experiments of others scientists. Why is this important in science?

• Scientists often ask each other for help in performing experiments.
• Replication of experiments helps to confirm and verify results.
• Scientists frequently perform other scientists’ experiments in order to practice their technique.
• Repeating experiments is an effective way to make sure a laboratory is in optimal condition.

Josue goes to Silver River each week for 4 weeks and collects 5 samples of water to test the pH.

• repetition
• replication

Tags

NGSS.HS-ESS2-5

An environmental group contacts Nina to get her procedures so that they can check her results.

• repetition
• replication

Tags

NGSS.MS-ESS3-3

Evidence is ___________________

• A statement or conclusion that answers a question

• Scientific data, quotes, paraphrasing, or statistics that support the claim

• A justification that connects the claim to the evidence

• Not vital when using an argument

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.7.1

CCSS.RL.8.1

CCSS.RI.7.1

Which piece of evidence could be used to BEST support this claim:
High school students should be required to wear uniforms.

• When adding everything up, a school uniform could end up costing more than $200.
• A student reported, "Allowing us to wear our own clothes gives us a chance to show our unique style and independence."
• At one school that recently required students to wear uniforms, attendence rates went up, and behavior incidents went down.
• School uniforms can be ordered online .

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.7.1

CCSS.RL.8.1

CCSS.RI.7.8

What is the name of a scientific investigation that involves going outside and observing a subject in its natural environment?

• Research
• Field Study
• Observation
• Experiment

What form of data do scientists prefer?

• Measurable data/empirical evidence

• Qualitative data

• Uncontrolled evidence

• Single trial data/evidence

At one point in time, many people thought disease was caused by fate or by incorrect behavior. Following the invention of the microscope, bacteria were discovered. After this, a new theory of what causes disease arose that was known as the germ theory.  Why was the original theory modified? 

• It quickly became obvious that germs cause disease.
• The person who invented the microscope became ill.
• New evidence prompted revision to the original ideas.
• The proponents of the germ theory had political power.