CBA 1 Prep

​CBA 1 Prep Lesson

​CBA 1 Prep Lesson​

Density, Precision, Lab Equipment, Safety Signs and Measurement

​LAB EQUIPMENT

Review the following

Write down the ones you are unsure of

Multiple Choice

Used to hold and/or mix solid and liquid materials

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Multiple Choice

Used to hold small amounts of liquids and solids

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Multiple Choice

Used to measure specific volume of liquid

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Multiple Choice

Used to mix different chemicals

• beaker

• graduated cyclinder

• test tube

• erlenmyer flask

Multiple Choice

What is used to protect your eyes from chemicals, broken glass, and fire?

• Fire blanket
• Eye wash
• Goggles
• Flask

Multiple Choice

Name this item

• weighing boat 
• funnel 
• wash bottle 
• Erlenmeyer flask 

Multiple Choice

What is this called?

• Test Tube
• Beaker
• Eye Dropper
• Flask

Multiple Choice

• smock
• apron
• cover up
• goggles

Multiple Choice

Which of the following choices best represents the volume reading from the graduated cylinder pictured?

• 61 mL

• 61.5 mL

• 67 mL

• 67.0 mL

Multiple Choice

Read the graduated cylinder

• 76.0

• 76.15

• 71.9

Multiple Choice

How much liquid is in the graduated cylinder?

• 12 mL

• 12.0 mL

• 16.0 mL

• None of the above

Multiple Choice

Type in the measurement on the graduated cylinder to the correct number of significant digits. No unit.

• 6.300

• 6.3

• 6.32

• 7.70

Multiple Choice

Which of the following choices best represents the length reading from the metric ruler pictured?

• 87 mm

• 87.4 mm

• 87.40 mm

• 87.400 mm

Multiple Choice

Which of the following choices best represents the length reading from the metric ruler pictured?

• 0.8 cm

• 0.80 cm

• 0.800 cm

• 8 cm

​Safety Symbols

Multiple Choice

What does this symbol indicate?

• Corrosive

• Radioactive

• Posion/Toxic

• Bio Hazard

Multiple Choice

What does this symbol means?

• Toxic

• Flammable

• Bio Hazard

• Explosion

Multiple Choice

What does this sign means?

• Food & drink is allowed

• Food & drink not allowed

Multiple Choice

What safety symbol is shown here?

• Eye Protection

• Clothing Protection

• Hand Safety

• Heating Safety

• Electric Safety

Multiple Choice

What safety symbol is shown here?

• Chemical Protection

• Animal Protection

• Plant Safety

• Sharp Object Safety

• Electric Safety

Multiple Choice

What safety symbol is this? 

• biohazard
• radiation
• toxic
• corrosive

Multiple Choice

What does this symbol indicate?

• Corrosive substances are present; protect your hands.
• Wash your hands.
• Extreme temperatures are present; wear appropriate gloves.
• Bacteria are present.

Multiple Choice

What safety Symbol is this?

• Flamable
• Oxidizing Agent
• No Open Flame
• Explosion

Multiple Choice

• Environmental Hazard
• Electrical Hazard 
• No Open Flame
• Corrosive

Multiple Choice

• Poison
• Bio Hazard
• Environmental Hazard
• Not Drinking Water

Calculating Density

​Note: Definition

MASS

The amount of matter an object contains.

​

The amount of volume an object occupies

​

Density- How much matter an object has relative to its volume​

Some text here about the topic of discussion

​Note: Definition

Volume

Some text here about the topic of discussion

The amount of space an object occupies

​

​Note: Definition

Density

How much matter an object has relative to its volume​

Some text here about the topic of discussion

Multiple Choice

A crayon has a mass of 10.0 g and volume of 5.0 mL. What is the density?

• 30 g/mL

• 15 g/mL

• 1.0 g/mL

• 2.o g/mL

Multiple Choice

The amount of space something takes up

• density
• volume
• mass
• matter

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

If you are given the density and volume of an item, how would you calculate its mass?

• D = M/V  SO..
  M = D/V
• D = M/V  SO...
  M = V/D
• D = M/V SO...
  M = D x V

Multiple Choice

How many estimated digits should there be when reading a measurement from a piece of lab equipment?

• 0
• 1
• 2
• 3