Wake-up

1. List five pieces of lab equipment in the picture.

2. What are three pieces of lab equipment that can be used to measure volume?

Wake-up (Think!!)

1. What is the name of the “curve” that the eye is looking at?

2. What piece of lab equipment is shown to the right?

3. What is the measurement shown?

SWBAT• Understand the various means of

measuring for Biology.• Apply measuring skills.

Measurements

Length

The distance between two

points.

Unit for LengthMeter (m); Centimeter (cm); Millimeter (mm)

Tool

Ruler; Meter Stick

MassThe amount of matter (substances) within an objectWho has the most matter, an elephant or a mouse?Who has the most mass?

Units for MassGrams (g)

ToolElectronic Balance

Volume

The amount of space a substance occupies; gas, liquid or solid

Units for Volume

Liter (L); Millimeters (mL)

Tools

Graduated cylinder (Preferred); Beaker; Flask

Meniscus Curved upper surface of a liquid in a tube

Meniscus

How to read volume of a liquid

What is wrong with the picture?

The graduated cylinder should be on a flat surface; Need to read volume at eye level

Read volume at the BOTTOM of the meniscus

Practice reading volume on a graduated cylinder

Find the scale of the graduated cylinder. Read at the bottom of

the meniscus.

8.45 mL

Practice reading volume on a graduated cylinder

Find the scale of the graduated cylinder. Read

at the bottom of the meniscus.

32.5 mL

Practice reading volume on a graduated cylinder

Find the scale of the graduated cylinder. Read

at the bottom of the meniscus.

33.5 mL

Practice reading volume on a graduated cylinder

Draw in the water level for 11.4ml

Temperature

Measure of the warmth or coldness of an object.

Units for TemperatureCelsius (°C), Fahrenheit (°F); Kelvin (K)

Tools

Thermometer