Science safety, scientific method, and variables

Clara and Chelsey were in the science lab. They were hungry and decided to have a snack while doing their experiment. What lab safety rule did they violate?

• Get help

• No eating and drinking.

• Wear safety goggles.

• Clean up your mess.

An educated guess is _____________

• question

• observation

• hypothesis

Rose was in a hurry to get to class and when the bell rang she hurried out of the classroom. Her table still had all of her lab supplies. What lab rule did she violate?

• no unauthorized experiments

• get help

• detect odors safely

• clean up your mess

Before creating a hypothesis you would have created a ________________ and done ________________.

• analyze and conclusion

• question and research

• experiment and collect data

Tags

NGSS.MS-PS2-2

Select the common order of the scientific method.

• question, research, hypothesis, experiment, collect data, analyze, conclusion, report

• Question, hypothesis, research, collect data, experiment, analyze, conclusion, report

• hypothesis, question, research, experiment, collect data, analyze, conclusion, report

If you break glassware in the lab, you should...

• Tell the teacher
• Clean it up quickly before the teacher notices
• Scream at the top of your lungs

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-PS2-5

What is an independant variable?

• a variable that stays the same in an experiment

• the result of an experiment

• a variable that is changed by the scientist

• a variable that changes because of the experiment

Tags

NGSS.MS-PS2-2

What is the control group in an experiment?

• a variable that changes due to the independent variable

• a variable that does not change during an experiment

• a single variable that is changed

• the result of the experiment

What is the dependent variable?

• a variable that the scientist changes

• a variable that does not change during an experiment

• the result of the experiment

• a variable that never changes