BW 8/5-measuring & tools review

Beakers are used

• to measure volume with high accuracy and precision

• to hold small amounts of dry chemicals

• to recover dissolved solids

• to hold, heat, stir volumes and observe reactions

Name the lab equipment. 

• test tube
• graduated cylinder
• flask
• beaker

Name the lab equipment. 

• tweezers
• beaker tongs

• test tube holder
• test tube holder

Name the tool pictured

• scalpel
• pipet
• Tweezer
• Forceps

What is special about graduated cylinders?

• They hold large quantities of liquid safely
• They measure small amounts very accurately. We use them when precision is important.
• They allow us to examine the liquid, we use them when looking for suspended solids.
• They are easily heated. We use graduated cylinders to heat liquids

What is BEST used to measure, heat, and mix large amounts of liquids?

• Beaker

• Flask

• Test Tube

• Graduated Cylinder

Identify the primary function of the lab equipment seen in the image.

• Transfer small amounts of liquid
• Transfer large amounts of liquid
• Measure liquid volume
• Mixing liquid chemicals

Identify the equipment shown here:

• test tube holder

• iron rod

• iron ring

• ring stand

Where do we read the level of liquid?

• The highest point the liquid touches
• The bottom of the meniscus
• Half way between, we make an educated guess and round it
• Somewhere about there

What is the correct volume of the liquid. Include one uncertain digit

• 10.5 ml

• 15.0 ml

• 20 ml
• 15 ml