Daily Thinker 10/04/10Task:BE QUIET, WRITE AGENDA FIRST!1.What are the goals you have set

for yourself this week? 2.Explain them. 3.If you do not yet have any goals,

set at least one.

Daily Thinker10/5/10Define in your own words:MassWeightMatterGravity

BE READY TO TAKE NOTES NEXT!

Matter Anything in the universe that

takes up space

Anything that has mass

Anything that is made of atoms and molecules

Gravity An attractive force that pulls objects together Example: Earth’s gravity keeps objects on the

surface by pulling objects toward the center Everything in the Universe has gravity (even

people!) Depends on the mass of an object The greater the mass the greater the

gravitational pull

Weight The force on an object caused by

gravity trying to pull the object down

A spring scale measures the force of gravity pulling on a mass

A person with more mass has more gravity, and therefore weighs more.

Mass How much matter an object contains

Measured using a balance

Basic unit of measure is the gram

consistent, not dependent on gravity

http://www.exploratorium.edu/ronh/weight/

Daily Thinker10/6/10

Explain what measurement means.

Give 3-5 careers you think use measurement the most.

Write as many words that relate to measurement as you can.

Daily Thinker 10/06/10

List as many words that you can think of relating to measurement.

Lesson 1: Length

English vs. Metric Units

Which is longer?

A. 1 mile or 1 kilometer

B. 1 yard or 1 meter

C. 1 inch or 1 centimeter

1.6 kilometers

1 mile

1 yard = 0.9444 meters1 inch = 2.54 centimeters

Metric Units

The basic unit of length in the metric system in the meter and is represented by a lowercase m.

Standard: The distance traveled by light in absolute vacuum in 1⁄299,792,458 of a second.

Metric Units

1 Kilometer (km) = 1000 meters

1 Meter = 100 Centimeters (cm)

1 Meter = 1000 Millimeters (mm)

Which is larger?

A. 1 meter or 105 centimeters

B. 4 kilometers or 4400 meters

C. 12 centimeters or 102 millimeters

D. 1200 millimeters or 1 meter

Click the image to watch a short video

about the meter.

Measuring Length

How many millimeters are in 1 centimeter?

What is the length of the line in centimeters? _______cm

What is the length of the line in millimeters? _______mm

What is the length of the line to the nearest centimeter? ________cm

HINT: Round to the nearest centimeter – no decimals.

1 centimeter = 10 millimeters

Daily Thinker 10/07/10DO NOT TOUCH THINGS WITHOUT

PERMISSION!Fill in the blanks. Use your notes.

1. ____ is how much ______ an object contains.

2. A triple beam balance is used to measure___.

3. The basic unit of measuring mass is _______.

4. _______ changes with gravity while _______ will remain constant even if gravity changes.

Interactive Balance Beam

Lesson 2: Mass

English vs. Metric Units

Which is larger?

1. 1 Pound or 100 Grams

2. 1 Kilogram or 1 Pound

3. 1 Ounce or 1000 Milligrams

1 pound = 453.6 grams

100 kilogram = 220 pounds

1 ounce of gold = 28,349.5 milligrams

Metric Units

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.

Standard: 1 kilogram is equal to the mass of the International Prototype Kilogram (IPK), a platinum-iridium cylinder kept by the BIPM at Sèvres, France.

Metric Units

1 Kilogram (km) = 1000 Grams (g)

1 Gram (g) = 1000 Milligrams (mg)

Which is larger?

A. 1 kilogram or 1500 grams

B. 1200 milligrams or 1 gram

C. 12 milligrams or 12 kilograms

D. 4 kilograms or 4500 grams

Click the image to watch a short video

about mass.

Kilogram Prototype

Measuring Mass

We will be using triple-beam balances to find the mass of various objects.

The objects are placed on the scale and then you move the weights on the beams until you get the lines on the right-side of the scale to match up.

Once you have balanced the scale, you add up the amounts on each beam to find the total mass.

What would be the mass of the object measured in the picture?

_______ + ______ + _______ = ________ g

Measuring Mass – Triple-Beam Balance

Interactive Balance Beam

1st – Place the film canister on the scale.

2nd – Slide the large weight to the right until the arm drops below the line. Move the rider back one groove. Make sure it “locks” into place.

3rd – Repeat this process with the top weight. When the arm moves below the line, back it up one groove.

4th – Slide the small weight on the front beam until the lines match up.

5th – Add the amounts on each beam to find the total mass to the nearest tenth of a gram.

Daily Thinker 10/08/10DO NOT TOUCH THINGS WITHOUT

PERMISSION!

All work is DUE today!

Daily Thinker 10/08/10Independent Work DayWeekly Assignments:

Decimal Packet Weight/Mass on other

planets calculation table

Metric packet Q/A

Binders!

Due next Wednesday

See the board for necessary handouts and class work

See wiki for missing Daily Thinkers

Notes from Monday, Metric Mania and Metric packet