10-14-13 Do Now:How Do You Measure Up?

Key Question: What does Volume and Mass measure?

Initial Thoughts:

Get out your glue stick, too.

Evidence 1: Notes & Practice

SI Measurements(also known as “metric system”)

• “SI” stands for “System International” or “International System of Measurement”

• What about it?

– Common Language for scientists– Based on units of 10– Multiply or divide to go up or down

when converting units– Prefixes determine “how much” of a

unit

SI Measurements(also known as “metric system”)

SI Measurements(also known as “metric system”)

Important BASE units to remember:

METERS = m (measures distance or length)

• Measure with ruler/meterstickruler/meterstick

LITERS = L (measures volume — how much space something takes up)

• Measure with graduated graduated cylinder/beakercylinder/beaker

• Or with a rulerOr with a ruler (length x height x (length x height x width)width)

GRAMS = gg (measures mass)• Measure with triple beam triple beam

balance/scalebalance/scale

oCELSIUS = ooCC (measures temperature)

• Measure with thermometerthermometer

Important PREFIXES to remember:

k = kilo- (means “10001000”)h = hecto-(means “100100”)D = deca-(means “1010”) BASE UNIT (liter, meter, gram)d = deci-(means “1/10” or 0.11/10” or 0.1)c = centi- (means “1/1001/100” or .01)m = milli- (means “1/10001/1000” or .001)

Easy way to remember the order of prefixes:

Kids Have

Dreams But

DreamsCost

MoneyMeasurement by Brainpop

PrefixesK H D base unit d c

mKilo Hecto Deca meter deci centi

milli liter grams

Large Medium Small

Weight of an elephant? An ant?

Fly length? Distance to Disneyland? Length of finger?

Volume of a pool? Amount of juice in a pitcher?

Practice

• 1 meter (think meter stick)

• Equals 100 cm

• Equals 1000mm

• Challenge: How many kilometers?

• 1 meter Equals 1/1000 km

Triple Beam Balance

• Go to my SWIFT page.

• Click on Links

• Click on Triple Beam Balance Practice

Evidence contd.

• With your table partner, complete the bottom questions 1-10.

• Reminder: remember Participation. Everyone should be contributing.

Evidence 2: Measurement Lab

There are 8 stations.

Read the instructions and record your answers in your journals.

MAKE SURE TO WRITE DOWN THE NUMBER OF THE STATION

Measuring Liquids

• How many ml of water is shown in the picture?

• Always measure from the bottom of the meniscus.

• Answer: 6.6 ml

Measuring VOLUME by displacement• Used to measure

irregular or non-box shapes.

• When you can’t measure length x height x width

• 5.6 – 4.8 = 0.8 ml

Measuring Mass• What is the mass? Don’t forget to include

units!!!

Analysis Questions

1. Name 2 different base units that could measure the amount of water a fish tank could hold.

2. Why is the number 10 important in the metric system?

3. Why would the prefix “kilo” be more useful than “tera” (1 trillion)?

SummaryRemember: paragraph format

What did you think about how volume, mass, and length are measured before this lesson?

What did you learn about how volume, mass, and length are measured from this lesson? (Minimum of 3 sentences!!!)

What are some further thoughts or questions you have about how volume, mass, and length are measured?

Reflection:

Come up with your own Metric Mnemonic:

i.e. Kids Have Dreams But Dreams Cost Money Kilo- Hecto- Deca- (BASE) Deci- Centi- Milli-

ORKing Henry Doesn’t Usually Drink Chocolate MilkKilo- Hecto- Deca- (unit) Deci- Centi- Milli-

Big Idea

• What is the big Idea of metric units & conversion?

• Metric prefixes are multiples of 10 and can be easily converted by moving the decimal.