8th grade-ch. 1 sec. 3 phases, eclipses, and tides

Ch. 1 Sec. 3

Phases, Eclipses & Tides

motions of the moon• revolves around Earth- 27.3 days• rotates on its axis- 27.3 days• 1 moon day = 1 moon year• near side always faces Earth

The Moon in its orbit around Earth.

"Man In The Moon"Best viewed during a full moon

phases

• Moon does not produce own light- reflects sunlight

• different shapes of moon you see from Earth

• depends on how much of sunlit side of moon faces Earth

Video of moon phases• http://www.harcourtschool.com/activity/moon_phases/

3. waxing

gibbous

6. 3rd

quarter

8. new moo

n

4. full

moon5.

waning gibbous

7. waning

crescent

1. waxing

crescent

2. 1st

quarter

1.

2. 3.

4. 5.

6. 7.

8.

Phases of the Moon Activity-Using Oreos

• Materials: four Oreo cookies, plastic knife, long blue construction paper

1.On a paper plate, make a chart showing New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent, using Oreos.

– With your knives, scrap away the frosting to represent each phase.

– Draw the phases in your notebook.

Phase New moon Waxing crescent

1st quarter Waxing gibbous

Drawing

Oreo

Phase Full moon Waning gibbous

3rd quarter Waning crescent

Drawing

Oreo

eclipse

solar eclipse lunar eclipse

object in space comes between sun & 3rd object-

casts shadow on that object

moon between Earth & sun

blocks sunlight from Earth

Earth between moon & sun

blocks sunlight from moon

occurs onlyduring full moon

occurs onlyduring new moon

solar eclipse

umbra= darkest part of shadowpenumbra= larger part of shadow-surrounds darkest part

lunar eclipse

partial lunar eclipse total lunar eclipse

tides

rise & fallof water

causedmainly

by force of Moon’s

gravity

at any one time:• 2 places

w/ high tides• 2 places

w/ low tides

Spring tide Neap tidetide with greatest difference between low & high tide

tide with least difference between low & high tide

gravity of sun & moon pull in same direction

moon is at right angle to sun

occur at new moon & full moon

occur at first & last quarter

straight line

90O angle