9/15 & 9/16 - 7th Grade Agenda

Learning Objective: Is mealworm a worm or an insectCollect HW: Metrics Worksheet #2Video: What is Nano, Where is NanoSafetyMealworm LabPoster of Science PresentationHW: Metrics Worksheet #3

Daily Reflection

• Prompt: Write 3 Facts or Questions that you have about the Metrics System. (Write in complete sentences)

Here is another way to remember the prefixes

Milli-

1/1000 Centi-1/100

Deci-1/10

Kilo-X1000

Hecto-X100

Deca-X10

King Henry Does Drink Chocolate Milk

For every step upward on the chart you are dividing by

10 or moving the decimal one place to the left..

100 Centimeter = _____ Decimeter10?

How do we convert from Centimeter to Decimeter?

For every step downward on the chart you are multiplying by 10 or moving one place value to

the right.

100 Kilometer = _________ Meter100,000?

How do we convert from Kilometer to Meter?

The sun is about 150,000,000,000 meters from earth

• What is another way to write the same number without writing all the zeros?

• Power or 10

• 15 X 10 meters10?

Powers of 10

101 = 10102 = 100103 = 1000

100 =10-1 =10-2 =10-3 =

1.1.01.001

Here is another way to remember the prefixes

Milli-

1/1000 Centi-1/100

Deci-1/10

Kilo-X1000

Hecto-X100

Deca-X10

King Henry Does Drink Chocolate Milk

Why should we use the metric system or System International?• All the countries around the world

including United States uses the metric system

• Its easier to divide or multiply by 10 than by 12 or 5280 (i.e. English System)

Class Reading : Lab Safety Symbols (p.686-687)

Safety Goggles

Always wear safety goggles to protect your eyes in any activity involving ch_____, fl______ or heating, or the possibility of broken gl_______.

emicalames

assware

Breakable Glassware

You are working with materials that may be breakable, such as glass containers, glass tubing, thermometers, or funnels. Handle br________ materials with c____. Do not touch broken gl_______.

eakableareassware

Heating

Use a cl_____ or tongs to pick up hot glassware. Do not touch hot objects with your bare h_____.ands

amp

Electric Shock

Avoid the possibility of electric shock. Never use electrical equipment around w______, or when the equipment is wet or your hands are wet. Be sure cords are unta______ and cannot trip anyone.

ngled

ater

Physical Safety

When an experiment involves physical ac_____, take precautions to avoid inj______ yourself or others. Follow instructions from your teacher. Alert your teacher if there is any reason you should not part_______ in the activity.

uring

tivity

icipate

Daily Reflection

• Prompt: Examine a meal worm and write 3 observations about it.