Test 1: Lab Safety, Scientific Method, Introduction to Energy

What is the CORRECT procedure for students to follow if a chemical is spilled?

• Stand back and advise the teacher of the spill.
• Run madly out of the room.
• Splash large amounts of water onto the spill.
• Immediately ask to go to the restroom.

When in the lab...

• long sleeves and loose clothing should be rolled up
• closed toe shoes should be worn
• long hair should be pulled back
• all of the above

 If you do not understand a direction or part of a lab procedure, you should 

• skip it and go on to the next part.
• ask the instructor before proceeding
• try several methods until something works
• figure it out as you do the lab

What should you always do before conducting a lab?

• Discuss what you will do this weekend
• Begin the experiment
• Read ALL the directions 
• just sit quietly and do nothing

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

• dependent variable
• independent variable
• data
• control group

Tags

CCSS.6.EE.A.2C

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Tags

NGSS.MS-PS3-1

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

• conclusion
• procedures
• materials
• responding variable

The part of the experiment that remains the same for the control and experimental group.

• constants
• control
• independent
• dependent

The following statement is a hypothesis formed about marsh grass: 
If the amount of nitrogen marsh grass receives is increased, then the height of the grass will increase, because nitrogen is an essential nutrient needed for marsh grass to grow.
What is the independent variable of the statement above? 

• Height of grass
• Amount of nitrogen
• Essential nutrient
• Amount of growth

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the male alligators
• the incubator
• the gender of the alligator
• the temperature

Tags

NGSS.MS-LS1-5