(Savvas 1.2) Using a Scientific Approach Worksheet Quiz

Identify the goal of any scientific method.

• To prove a hypothesis

• To collect data

• To understand the world around you

• To create a theory

Answer explanation

The goal of any scientific method is to understand the world around you, not just to prove a hypothesis, collect data, or create a theory.

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

Name three types of variables in an experiment.

• Independent, dependent, controlled

• Independent, dependent, random

• Controlled, random, fixed

• Fixed, random, independent

Answer explanation

The correct types of variables in an experiment are independent, dependent, and controlled. These variables play specific roles in the research design and analysis process.

Tags

NGSS.MS-PS2-2

Is the following sentence true or false? If the data from an experiment do not support your hypothesis, you can revise the hypothesis or propose a new one.

• True

• False

Answer explanation

If the data from an experiment do not support your hypothesis, you can revise the hypothesis or propose a new one, making the statement true.

Tags

NGSS.MS-ETS1-4

NGSS.MS-LS1-5

How does a scientific theory differ from a hypothesis?

• A theory is a guess, while a hypothesis is a well-tested explanation.

• A theory is a well-tested explanation, while a hypothesis is a proposed answer to a question.

• A theory is a proposed answer to a question, while a hypothesis is a guess.

• A theory and a hypothesis are the same.

Answer explanation

A theory is a well-tested explanation, while a hypothesis is a proposed answer to a question.

Is the following sentence true or false? A scientific law attempts to explain an observed pattern in nature.

• True

• False

Answer explanation

A scientific law attempts to explain an observed pattern in nature, making the statement true.

All scientists may accept a given scientific law, but different scientists may have different ________________ to explain it.

• Theories

• Laws

• Hypotheses

• Observations

Answer explanation

All scientists may accept a given scientific law, but different scientists may have different theories to explain it. Theories are explanations that are based on evidence and reasoning, providing a framework for understanding the law.

Why do scientists use scientific models?

• To make predictions

• To conduct experiments

• To collect data

• To publish papers

Answer explanation

Scientists use scientific models to make predictions based on the relationships and patterns observed in the data, helping them understand and anticipate future outcomes.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

NGSS.MS-PS3-2

Circle the letters that correctly state what scientists do if data show that a model is wrong.

• Change the model

• Replace the model

• Ignore the data

• Revise the data

Answer explanation

Scientists change, replace, or revise the model if data show it is wrong, not ignore the data.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Circle the letters of safety precautions to follow whenever you work in a science laboratory.

• Study safety rules

• Never ask questions

• Read all procedural steps

• Understand the procedure

Answer explanation

Circle the letters of safety precautions to follow whenever you work in a science laboratory: Study safety rules, Read all procedural steps, Understand the procedure.

Why should you wash your hands after every experiment?

• To remove chemicals

• To prevent contamination

• To avoid infections

• All of the above

Answer explanation

To ensure proper hygiene and safety, washing hands after every experiment is necessary to remove chemicals, prevent contamination, and avoid infections, hence all of the above reasons are valid.