DO NOW $$ Create a proper scale to this graph & graph it 4.1

Tools of the Biologist & Measurement 4.1

Scientific Tools 4.1

Identify the tool with the picture! B I A Meter Stick Graduated Cylinder Triple-beam Balance Thermometer Compound Microscope Erlenmeyer Flask Beaker Test Tube Tongs Petri Dish Dropper K D E J C 4.1 H F G

Complete the worksheet on scientific tools 4.1

4.1

Do Now 44 deci- centi- milli- Think of words you know( decade, millennium, century) and predict the prefixes below: deci- centi- milli- What tools do biologists use to measure length, volume and temperature? 4.2

Scientific Measurement 4.2

Metric Measurements Metric Measurements Which unit is more commonly used throughout the world… a “yard” or a “meter”? This is the case everywhere in the world except the USA, Myanmar and Liberia A meter is part of a measuring system known as: Why metric measurements and not yards, inches and pounds? Compare the meter stick with the yard stick… Answer – Metric Measurements - Metric units are broken down by “10” not by “12” - Count up and down by 10 … easier than 12

Length Basic (Base) unit for measuring length = Meter What 2 items could we use to measure a meter with? Football field Distance from New York to Los Angeles Length of paper Width of a dime Length of a fingernail Length of teacher’s desk Meter

Lets breakdown a METER “Deci” means – One tenth (1/10) Therefore, how many decimeters are in 1 meter? 1 decimeter = 0.1 or 1/10 of a meter One tenth (1/10) TEN (10) Football field Distance from NY to LA Length of paper Length of finger Width of dime Length of fingernail Length of teacher’s desk Use meter stick to show

Lets breakdown a METER “Centi” means – One hundredth (1/100) Therefore, how many centimeters are in 1 meter? 1 centimeter = 0.01 or 1/100 of a meter One hundredth (1/100) 100 Football field Distance from NY to LA Length of paper Length of finger Width of dime Length of fingernail Length of teacher’s desk Use meter stick to show

Lets breakdown a METER “Milli” means – One thousandth (1/1000) “Milli” means – Therefore, how many millimeters are in 1 meter? 1 millimeter = 0.001 or 1/1000 of a meter ALWAYS the smallest lines you see on a meter stick! 1000 Football field Distance from NY to LA Length of paper Length of finger Width of dime Length of fingernail Length of teacher’s desk

Lets use many METERs “Kilo” means – Therefore, how many meters are in 1 kilometer? 1 kilometer = 1,000 meters One thousand (1000) 1000 Football field Distance from NY to LA Length of paper Length of finger Width of dime Length of fingernail Length of teacher’s desk

Let’s practice measuring LENGTH

How long are these items?

How long is the Pencil? cm = mm =

How long is the Leaf? Do Now cm = mm = Begin e

Do Now Page 6… Blank Space Draw a metric ruler and visually show a decimeter, centimeter and millimeter (Give it a try if you’re unsure) Show me you know how big each unit of measurement is

Do Now Page 7 Practice measuring length! Begin

Conversions! How many ________ in 1 meter? A) cm B) dm C) mm 4.3

How do we convert or go from one unit to the other? If you start at the BASE floor, and want to get to the “deci” floor, you move down one step to the right… you move the DECIMAL one place to the right! Meter Start at the base and move to the “Kilo” floor, move 3 steps to left… decimal moves 3 spaces to left! 4.3 Meter Deci-meter Centi-meter Milli-meter 1.0 6.0 200.0

Lets Practice Conversions!! Kilo-meter BASE Unit Deci-meter Centi-meter Milli-meter 10 m 15,000 mm 500 m 3.79 dm 550 km 3.33 cm 4.3

Extra Reference for Conversions 4.3 1.0 m = 10 decimeters 1.0 m = 100 centimeters 1.0 m = 1,000 millimeters 1.0 m = .001 kilometers 1,000 m = 1 kilometer 1,000 m = 1,000,000 millimeters 1,000 m = 100,000 centimeters 1,000 m = 10,000 decimeters

Do Now (page 6) Convert: 16 cm  __________m 7,438 mm  _________ m 16 dm  _______ cm 12.36 m  ________ mm

Volume Volume = amount of space a something takes up Base unit for measuring Volume = Tool used for measuring volume = Liter (l) Graduated Cylinder Do Now? LP 4.4

How do you measure Volume? The BOTTOM of the meniscus Measure – The what??? Meniscus – Curved surface of water in graduated cylinder 21 Bring a Graduated Cylinder to class & food dye 19

What about me?

Let’s practice measuring Volume

Mass Mass - is the amount of matter in something (similar to weight) Mass is measured in Tool = The mass of the object will be the sum total of the three beams GRAMS (g) Triple-beam balance

Temperature Degrees Celsius (5°C) Thermometer Freezing Boiling Celsius Temperature = movement of atoms (atom = smallest piece of a specific piece of matter) Base unit for measuring temperature = Tool used for measuring temperature = Degrees Celsius (5°C) Thermometer Freezing Boiling Celsius Fahrenheit Fahrenheit = 32 & 212 Celsius = 0 & 100

Relative Temperatures

Summary: Measurement tools & units