Unit 1 Test Review Part 1

Long hair in the laboratory should always be

• Pulled back
• Always neatly groomed
• Cut short
• Held away from the table with one hand

When you finish working with chemicals, biological specimens, and other lab substances, always

• Wash your hands with soap and water
• Wipe your hands on a towel
• Treat your hands with lotion
• Wipe your hands on your clothes

Approved eye protection devices (such as goggles) are worn in the laboratory

• To improve your vision
• To avoid eye strain
• Only if you don't wear corrective glasses
• Anytime chemicals, heat, or glassware are used

After completing an experiment, all chemical wastes should be

• disposed of according to the teacher's directions
• dumped in the sink
• left for the next class
• taken home

Tags

NGSS.HS-ESS3-4

What is a factor that is measured for change in an experiment?

• control
• constant
• independent variable
• dependent variable

Tags

NGSS.MS-PS3-4

What is the factor that an experimenter changes on purpose?

• Dependent Variable
• Independent Variable
• Constant
• Control

Tags

NGSS.MS-PS2-2

A summary of the experiment that includes whether hypothesis was supported or not.

• Hypothesis

• Results

• Conclusion

• Independent Variable

The part of the experiment that does not contain the independent variable. Used for comparison.

• Control Group
• Experimental Group
• Results
• Data

Tags

CCSS.HSS.IC.B.3

What are all the things that are kept the same in an experiment?

• controls
• data
• constants
• independent variables

Tags

CCSS.HSS.IC.B.3

What is the affect of salt water on the the height of blades of grass?

What is the independent variable in the above question?

• salt water

• height

• average

• affect

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4