Scientific Method & Lab Safety

Horseplay, jokes, and pranks are appropriate in the science classroom at any time.

• True
• False

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

What should you do if you break glass in the lab?

• Tell the teacher.
• Sweep up the glass.
• Pick up the glass with your hands.
• Ignore it; the teacher will clean it up when she sees it later.

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-PS2-2

When should you tie back long hair or baggy clothing?

• When working with chemicals
• When working with a Bunsen burner
• When doing dissections.
• Any time you are working in the lab.

The summary at the end of an experiment that explains the results. 

• conclusion
• procedures
• materials
• responding variable

Tags

NGSS.MS-PS1-2

You should never ______ chemicals in the lab. 

• taste
• touch
• smell
• all of the above

A dependent variable in an experiment is:

• when the scientist controls what to test

• an educated guess

• asking a question

• what is being measured

If a fire erupts, immediately

• notify the teacher.

• run for the fire extinguisher.

• throw water on the fire.

• open the windows.

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group