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Welcome

Fact Fictionor

The distance light travels in a year is about

6,000,000,000,000 miles.

Fact or Fiction

Light Travels 2

That is a fact

The distance from the Earth to the Sun is about

1,400,000,000 meters

Fact or Fiction

That is fiction. The distance is actually

140,000,000,000m

The mass of a dust particle is about

0.00753 kg

Fact or Fiction

Dust 2

That is fiction.The mass is actually 0.000000000753 kg

The size of an atom is about 0.0000000001 meters

Fact or Fiction

That is a fact

What do you notice about these numbers

0.0000000001

0.000000000753

140,000,000,000

6,000,000,000,000

What is another way to express extremely large or small numbers?

1. Standard notation2. Scientific notation3. Mathematical

notation4. Expanded notation

Which of these numbers would be better written in scientific

notation?

30

0.33,000,000,000

3003,0000.03

How can we write 3,000,000,000 in scientific notation?

3,000,000,000 = 3 x 109

The distance from the Earth to the Sun is over 100,000,000,000 meters.

What is it in scientific notation?

a. 1 x 108

b. 1 x 109

c. 1 x 1010

d. 1 x 1011

The Extremes

Extreme Sort A

Journal

Fill in the first five rows

sort a anwers

1,000m 100m 10m 1m

Kilometer Hectometer Decameter Meter

What is smaller than a baseball bat

patternsOBJECT # IN METERS # IN SCI. NOTATION

Ukrop’s Race 10,000 1 x 104

60 Train Cars 1,000 1 x 103

Soccer Field 100 1 x 102

Bus 10 1 x 101

Baseball Bat 1 1 x 100

Crayon 0.1 1 x 10-1

How can we write 0.0004 in scientific notation?

0.0004 = 4 x 10-4

The size of an atom is about 0.0000000001meters

What is it in scientific notation?

a. 1 x 10-7

b. 1 x 10-8

c. 1 x 10-9

d. 1 x 10-10

Sort

SortSort the remaining cards from largest to smallest your group and record answers in your journal.

Sort Bdecimeter

centimeter

millimeter

micrometer

nanometer

0.1m

0.01m

0.001m

0.000001m

0.000000001m

When you ordered the scientific notation cards what part of the

number did you have to look at?

1. Whole number2. Ten3. exponent

What about

The diameter of Venus is about1.21999 x 107

meters

and

The diameter of the Earth is about

1.2736 x 107

meters

Which one is bigger?

a. 1.21999 x 107 (green) b. 1.2736 x 107 (red)

OR

Length of a large flea is about3.2689 x 10-3

Length of a small fire ant is about

3.2869 x 10-3

Which one is smaller?

a. 3.2689 x 10-3 (green)b. 3.2869 x 10-3 (red)

When you looked at the numbers on the last four slides what part of the

number did you have to look at?

a. Exponentb. Tenc. Decimal

What is a nanometer?

A nanometer is one billionth of a meter or 109

Why would we study numbers that are extremely small?

Light Waves

What color is light?

Refraction Light hits the prism and bends (refraction) causing the light to break apart into different wavelengths.

Wavelengths

wavelength crest

trough

crest

The Spectroscope and Diffraction

Electromagnetic Spectrum

Electromagnetic Sort

Place your cards in order from smallest number to

largest number.

Electromagnetic Spectrum

Label each section of the spectrum

Visible Light

Labels

gammaRays x-rays

light waves

radio waves

ultravioletRays

infraredRays

microwaves

Which numbers were easier to order?

A numbers in standard form

B numbers in scientific notation

Black dot