EQUIPMENT/MEASUREMENT
Unit 1 – Intro to Biology
Lab Equipment Review
Unit 1 – Intro to Science
Lab Equipment Review

Graduated Cylinder
 Used
to measure
volume.

Beaker
 Holds
liquids
Lab Equipment Review

Flask
 glassware
used in
making, heating and
storing solutions.

Metric Ruler
 Used
to measure
length
Lab Equipment Review

Thermometer
 Used
to measure
temperature, can be
alcohol or mercury.

Petri Dish
 Covered
dish, used to
grow/culture bacteria.
Lab Equipment Review

Electronic Balance
 Electronic
device used
to find the mass of an
object.

Hot Plate
 Heats
substances using
electricity.
Lab Equipment Review

Filter Paper
 Filters
out/separates
solid substances from
liquids.

Forceps
 Used
to hold or pick
up small objects.
Lab Equipment Review

Dissecting Pins
 Used
during the
dissection process to
keep specimen parts in
place.

Dissecting Tray
 Used
to hold/contain
specimen during
dissection.
Lab Equipment Review

Goggles
 Protects

your eyes.
Apron
A
garment worn to
protect your clothing.
Lab Equipment Review

Scissors

used to cut materials.

Microscope related
material will be
covered in a separate
lecture.
Measurement
Unit 1 – Intro to Science
The Metric System

The basic unit of length
in the metric system in
the meter and is
represented by a
lowercase m.

Metric Units
1
Kilometer (km)
 1000
1
meters
Meter
 100
Centimeters
(cm)
1
Centimeter
 10
Millimeters (mm)
Measuring Length
How many millimeters are in 1 centimeter?
1 centimeter = 10 millimeters
What is the length of the line in centimeters? _______cm
What is the length of the line in millimeters? _______mm
HINT: Round to the nearest tenth.
Ruler: http://www.k12math.com/math-concepts/measurement/ruler-cm.jpg
The Metric System


Mass refers to the
amount of matter in an
object.
The base unit of mass
in the metric system in
the gram and is
represented by g .

Metric Units
1

1
Kilogram (kg)
1000 Grams (g)
Gram (g)
 1000
(mg)
Milligrams
The Metric System


Volume is the amount
of space an object
takes up.
The base unit of
volume in the metric
system in the L and is
represented by L or l .

Metric units

1 liter (L)
 1000
milliliters (mL)
Measuring
We will be using a graduated
cylinder to find the volume of
liquids and other objects.
meniscus
Read the measurement based on the
bottom of the meniscus or curve.
When using a real cylinder, make
sure you are eye-level with the level
of the water.
What is the volume of water in the
cylinder? _____mL
What is the volume of water in each cylinder?
Pay attention to the scales for each cylinder.
Images created at http://www.standards.dfes.gov.uk/primaryframework/downloads/SWF/measuring_cylinder.swf
Measuring Volume
Measuring Volume
9 cm
We can measure the volume of regular object
using the formula length x width x height.
_____ X _____ X _____ = _____
8 cm
We can measure the volume of
irregular object using water displacement .
Amount of H2O with object = ______
About of H2O without object = ______
Difference = Volume = ______
esources.edb.gov.hk/~s1sci/R_S1Science/sp/en/sy
llabus/unit14/new/testingmain1.htm
10 cm
Conversion Practice
Try these conversions using the ladder method.
1000 mg = _______ g
1 L = _______ mL
160 cm = _______ mm
14 km = _______ m
109 g = _______ kg
250 m = _______ km
Metric Conversion
Write the correct abbreviation for each metric unit.
1) Kilogram _____
4) Milliliter _____
7) Kilometer _____
2) Meter _____
5) Millimeter _____
8) Centimeter _____
3) Gram _____
6) Liter _____
9) Milligram _____
Try these conversions, using the ladder method.
10) 2000 mg = _______ g
15) 5 L = _______ mL
20) 16 cm = _______ mm
11) 104 km = _______ m
16) 198 g = _______ kg
21) 2500 m = _______ km
12) 480 cm = _____ m
17) 75 mL = _____ L
22) 65 g = _____ mg
13) 5.6 kg = _____ g
18) 50 cm = _____ m
23) 6.3 cm = _____ mm
14) 8 mm = _____ cm
19) 5.6 m = _____ cm
24) 120 mg = _____ g