Unit 5Unit 5Reaching for the starsReaching for the stars

Part 1Part 1

asteroidasteroid

NOUNNOUN Any small celestial Any small celestial

body made of metal body made of metal and rock that revolves and rock that revolves around the sun. around the sun.

Many of these small Many of these small planets are between planets are between Jupiter and Mars.Jupiter and Mars.

cometcomet

NOUNNOUN A celestial body, A celestial body,

observed only in that observed only in that part of its orbit that is part of its orbit that is relatively close to the relatively close to the sun, having a head sun, having a head and a long tail seen and a long tail seen when close to the when close to the sun.sun.

extinctextinct

ADJECTIVEADJECTIVE inactiveinactive

gasgas

NOUNNOUN the state of matter the state of matter

that is not a solid or that is not a solid or liquidliquid

gravitygravity

NOUNNOUN the force of attraction the force of attraction

between all masses in between all masses in the universethe universe

meteoritemeteorite

NOUNNOUN stony or metallic stony or metallic

object that is the object that is the remains of a remains of a meteoroid that has meteoroid that has reached the earth's reached the earth's surface surface

enormousenormous

ADJECTIVEADJECTIVE very, very bigvery, very big

emitsemits

VERBVERB sends out; gives offsends out; gives off

corecore

NOUNNOUN center partcenter part

atmosphereatmosphere

NOUNNOUN The mix of gases that The mix of gases that

surrounds a star or surrounds a star or planet.planet.

naturenature

NOUNNOUN qualities, qualities,

characteristicscharacteristics

phenomenaphenomena

NOUNNOUN Facts or events that Facts or events that

can be seencan be seen

craterscraters

NOUNNOUN Round holes in a Round holes in a

surface made by surface made by something that has hit something that has hit itit

clustersclusters

NOUNNOUN Groups of things of Groups of things of

the same kind that the same kind that are very close are very close togethertogether

visualvisual

ADJECTIVEADJECTIVE Relating to sightRelating to sight

greatgreat

ADJECTIVEADJECTIVE largelarge

in ancient timesin ancient times

prepositional phraseprepositional phrase Very long agoVery long ago

become familiar withbecome familiar with

xx Get to know; learn Get to know; learn

aboutabout

latitudelatitude

NOUNNOUN Distance north or Distance north or

south of the equatorsouth of the equator

longitudelongitude

NOUNNOUN Distance east of west Distance east of west

of the meridian of the meridian (imaginary line from (imaginary line from the top of the world to the top of the world to the bottom that the bottom that divides east and divides east and west)west)

diameterdiameter

NOUNNOUN Length of the line that Length of the line that

divides a circle in halfdivides a circle in half

massmass

NOUNNOUN The amount of The amount of

material in somethingmaterial in something

passespasses

VERBVERB Goes across or Goes across or

around somethingaround something

approachapproach

NOUNNOUN movement toward or movement toward or

nearnear

eruptederupted

VERBVERB Exploded and sent off Exploded and sent off

fire and smokefire and smoke

crack’dcrack’d

VERBVERB

CrackedCracked

radianceradiance

NOUNNOUN brightnessbrightness

Canvas teems withCanvas teems with

PHRASEPHRASE The painting is full ofThe painting is full of

‘‘tweentween

PREPOSITIONPREPOSITION betweenbetween

ablazeablaze

ADJECTIVEADJECTIVE on fireon fire

solemnsolemn

NOUNNOUN Very serious or sadVery serious or sad

testamenttestament

NOUNNOUN proofproof

trialstrials

NOUNNOUN difficulties or difficulties or

hardshipshardships

parlourparlour

NOUNNOUN living roomliving room

blindsblinds

NOUNNOUN Objects that cover Objects that cover

windowswindows

ne’erne’er

NOUNNOUN nevernever

glitteredglittered

NOUNNOUN were very shinywere very shiny

ploughplough

NOUNNOUN A farmer’s toolA farmer’s tool

sailorsailor

NOUNNOUN a person who works a person who works

on a shipon a ship

personificationpersonification

NOUNNOUN Giving human traits to Giving human traits to

animals, plants, or animals, plants, or objectsobjects