TODAY’S AGENDA 10/21 FTF - Think – Pair – Share (You and your buddy will each need 1 piece of paper for today’s FTF!) Think: ( Alone) 1. What is weight?

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Presentation transcript:

TODAY’S AGENDA 10/21 FTF - Think – Pair – Share (You and your buddy will each need 1 piece of paper for today’s FTF!) Think: ( Alone) 1. What is weight? When you step on a scale, what are you actually measuring. 2. Have you ever heard of mass? What do you think it is? Pair: Talk with your buddy and together come up with definitions for mass and weight. Share what you came up with with the class! FTF - Think – Pair – Share (You and your buddy will each need 1 piece of paper for today’s FTF!) Think: ( Alone) 1. What is weight? When you step on a scale, what are you actually measuring. 2. Have you ever heard of mass? What do you think it is? Pair: Talk with your buddy and together come up with definitions for mass and weight. Share what you came up with with the class! Homework: Gravity Exploration Worksheet TODAY IN SCIENCE CLASS – New Buddies Review FTF Mass vs Weight Brain Pop Mass 2-column notes Gravity Exploration In-Class Work Ticket to Leave SWBAT Differentiate between mass & weight; identify what an objects weight & mass would be on Earth versus the moon. UNIT 3: Metric System

M ASS 2-C OLUMN N OTES

M EASUREMENT -A C OMMON L ANGUAGE Mass

M ASS

The measure of the amount of matter an object contains Matter: The material that all objects and substances are made up of Anything that has mass and takes up space is matter

M ASS Units of Mass

THE BASIC UNIT OF MASS IN THE SI SYSTEM IS THE… The basic unit of mass in the SI system is the kilogram.

W HAT ARE THREE OBJECTS ( OTHER THAN IN THE BOOK ) WHOSE MASSES WOULD BE MEASURED IN KILOGRAMS. Car Teacher’s Desk Desk Top Computer

A SMALLER OBJECT’S MASS SUCH AS A PAPER CLIP WOULD BE MEASURED IN Smaller objects such as a paper clip would be measure in milligrams or grams.

M ASS 2-C OLUMN N OTES

M ASS The Difference Between Mass and Weight

H OW WOULD YOUR WEIGHT DIFFER IF YOU WERE TO TRAVEL TO THE MOON ? If you were to travel to the moon your weight would be less. Your weight would be lesser because the force of gravity is less. Weight is a factor of the force of gravity

W HY WOULD YOUR MASS STAY CONSTANT IF YOU WERE TO TRAVEL TO THE MOON ? Your mass would stay the same if you were to travel to the moon because mass is the amount of matter that an object contains Since you are still made up of the same amount of “stuff”, your mass would not change

W HY DO SCIENTISTS PREFER TO USE THE MASS OF AN OBJECT INSTEAD OF ITS WEIGHT ? Scientists prefer to use an objects mass instead of its weight because mass does not change when the force of gravity does

R EADING C HECKPOINT ( PAGE 49): W HAT IS WEIGHT ? The measure of the force of gravity acting on an object

WHAT’S IT’S MASS? If an object has a mass of 60 kg on Earth what would it’s mass be on the moon? On jupiter? If an object weighs 100 lbs on Earth would it weigh more or less on the moon? On Jupiter? What is the difference between mass and weight?

C ONVERSIONS 1 kg=g 1 g=mg

C ONVERSIONS 1 kg=1,000g 1 g=mg

C ONVERSIONS 1 kg=1,000g 1 g=1,000mg

M ASS Measuring Mass

TODAY’S AGENDA 10/22 FTF (Homework Out Please!) Working Independently on 1 piece of paper & using complete sentences 1. In 3-4 sentences describe the difference between mass and weight (definitions are okay). 2. If an object has a mass of 53 kg, what would its mass be on the moon? On Jupiter? 3. If an object has a weight of 500N (N = Newtons) on Earth would it be the same on the moon? Explain why or why not. FTF (Homework Out Please!) Working Independently on 1 piece of paper & using complete sentences 1. In 3-4 sentences describe the difference between mass and weight (definitions are okay). 2. If an object has a mass of 53 kg, what would its mass be on the moon? On Jupiter? 3. If an object has a weight of 500N (N = Newtons) on Earth would it be the same on the moon? Explain why or why not. Homework: Picnic in the Park/Double Pan Balance TODAY IN SCIENCE CLASS – Review FTF Review Homework Mass Lab Station 1 - Double Pan Balance Ticket to Leave SWBAT Correctly calculate the mass of 5 objects using a double pan balance and a digital balance. UNIT 3: Metric System

USING A DOUBLE PAN BALANCE 1. Set the balance needle to 0 2. Place the object you want to measure in one pan. 3. Place the mass standards in the other pan until the needle is balanced. 4. Add up the total amount of mass standards in the other pan. 5. This equals the mass of the object.

MASS LAB STATION 1 - DOUBLE PAN LAB PROCEDURE Select 5 objects (golf ball, glue stick, gem, screw & marble). Make sure the balance is set to 0 (the needles is aligned). Choose 1 object and place it on the left pan of the balance. Estimate the mass of the object. Record on data table. Place standard masses on the right pan until it is balanced. Add up all standard masses on the right pan. Record sum in data table. Repeat with remaining 4 objects. If you finish early move on to Station 2 – digital balance!

TICKET OUT Describe the steps of using a double pan balance. Pretend you traveled to the moon and did this same lab. How would your results change?

TODAY’S AGENDA 10/23 FTF (Homework Out Please!) Metric Check (would you use mg, g or kg to measure these things?) 1. A football players weights approximately 100 __________. 2. The recipe called for 5 _____ of salt. 3. My new truck has a mass of over 1000 _______. 4. The hamsters has a mass of about 200 _________. 5. The doctor said to take 8 _____ of the powdered medicine. Video on using triple beam balance FTF (Homework Out Please!) Metric Check (would you use mg, g or kg to measure these things?) 1. A football players weights approximately 100 __________. 2. The recipe called for 5 _____ of salt. 3. My new truck has a mass of over 1000 _______. 4. The hamsters has a mass of about 200 _________. 5. The doctor said to take 8 _____ of the powdered medicine. Video on using triple beam balance Homework: Triple Beam Balance Worksheet TODAY IN SCIENCE CLASS – Review FTF Review Homework A Block Only - complete Station 1 2-column notes – Using A Triple Beam Balance Mass Lab Station 2 & 3 – Triple Beam Balance Ticket to Leave 3 – SWBAT Correctly calculate the mass of 5 objects using a triple beam balance and a digital balance. UNIT 3: Metric System

H OW DOES A TRIPLE - BEAM BALANCE WORK ? A triple-beam balance works by comparing the mass of the object you are measuring to a known mass When you use a triple-beam balance, you: 1. Set balance to Place the object on the pan 3. Shift the riders on the beams until they balance the mass of the object Start with the large rider (increments of 100) Next, the medium sized rider (increments of 10) Lastly, the small rider (increments of 0.1)

F IGURE 3: O BSERVING - W HAT IS THE MASS OF THIS TURTLE ? grams

L ABEL THE DIFFERENT PARTS OF THE TRIPLE - BEAM BALANCE.

Pan

L ABEL THE DIFFERENT PARTS OF THE TRIPLE - BEAM BALANCE. Pan Riders

L ABEL THE DIFFERENT PARTS OF THE TRIPLE - BEAM BALANCE. Pan Riders Beams

L ABEL THE DIFFERENT PARTS OF THE TRIPLE - BEAM BALANCE. Pan Riders Beams Pointer

MASS LAB STATION 2 & 3 Activity 2 – Digital Balance 1. Make sure the scale is zeroed when you begin 2. Place object on scale 3. Record mass in data table. Activity 3 – Triple Beam Balance 1. Use the same objects from activities 1 & 2 2. Set all riders to 0 and make sure the scale is balanced! 3. Place the first object on the pan 4. Move the riders until the object is balanced. 5. Add the mass of all riders. 6. Record the total mass in the data table. When you finish lab complete the Post Lab Questions! If you finish that, work on homework.

TODAY’S AGENDA 10/24 FTF (Homework Out Please!) Distribute study guide & set quiz goals. C Block & A Block – Finish Mass Lab FTF (Homework Out Please!) Distribute study guide & set quiz goals. C Block & A Block – Finish Mass Lab Homework: Study for Quiz AND Mass Lab Due Tomorrow! TODAY IN SCIENCE CLASS – Review FTF Review Homework Skittles Lab w/ partner Review for Quiz Ticket to Leave 3 – SWBAT Demonstrate mastery of using a triple beam balance during a hands- on activity; calculate the mass of 5 small objects using a triple beam balance. UNIT 3: Metric System

SKITTLES LAB Using a triple beam balance, you will find the mass and other attributes of skittles candy. Procedure Find mass of unopened bag & record on table 1. Open bag. Count total number of each color. Record on table 2. Select 1 skittle of each color and set aside. Beginning with red, find the mass of 1 skittle of each color. Record on table 2. Repeat previous step with other colors. When Finished – Begin working on lab questions and graph!

TICKET OUT ways to find the mass of an object 2 units used to measure the mass of objects (think very large item like a car and a smaller object like a stapler) 1 word that describes the amount of matter in an object.

TODAY’S AGENDA 10/25 FTF (Turn in Mass Lab!) Quiz Today! FTF (Turn in Mass Lab!) Quiz Today! Homework: Skittles Lab Due Monday! TODAY IN SCIENCE CLASS – Quiz – be quiet, be private, do your best! When finished: Complete Skittles Lab! Begin “Eureka Density” Assignment (due Tuesday) If all students finish: Density 2-column notes SWBAT Demonstrate knowledge of metric mass by taking a summative assessment. UNIT 3: Metric System