Lab Quiz

Does a chemical change happen in the mouth?

• Yes

• No

Tags

NGSS.MS-PS1-2

What clue in the test tube told you a chemical change occurred?

• The amount of the liquid increased

• The gold fish changed states of matter from solid to liquid.

• The color change due to the indicator solution

• No chemical change occurred.

Tags

NGSS.MS-PS1-2

Which best describes precipitates?

• Two gases to produce a new gas.

• Two solids melting to form liquids

• Two liquids mixed to form a new one

• A solid formed when two liquids are mixed

What is the purpose of the stage clips?

• To locate the specimen slide

• To support the microscope

• To focus on the specimen slide

• Hold the specimen slide in place on the stage

What is the purpose of the diaphragm on the microscope?

• It is the light source

• It regulates the amount of light

• Supports the stage

• Used for first focusing

Identify and label the microscope with the correct label.

a

b

c

d

e

f

g

h

Light source

Stage

Base

Arm

Coarse Adjustment Knob

Eye piece

Fine adjustment Knob

Objective lenses

Which adjustment knob is used for final focusing?

• Coarse Adjustment Knob

• Fine Adjustment Knob

What is the primary function of a Bunsen burner in a laboratory?

• To measure liquid volume

• To heat substances

• To mix chemicals

• To observe reactions

Tags

NGSS.MS-PS3-3

Which piece of equipment is used to accurately measure the volume of a liquid?

• Beaker

• Graduated cylinder

• Test tube

• Petri dish

What is the role of a control variable in an experiment?

• To change the outcome

• To remain constant

• To be measured

• To be manipulated

Tags

NGSS.MS-PS2-2