| Lesson 1, The Hot and Cold Summer
Words with short vowels
1. master 8. busy 15. sweater
2. ahead 9. quit 16. plastic
3. build 10. mother 17. balance
4. front 11. above 18. limit
5. meant 12. does 19. among
6. bread 13. advantage 20. dozen
7. ready 14. business
Challenge Words
21. activity
22. building
23. heavy
24. biscuit
25. purpose
Lesson 2, Sees Behind Trees
Words with long a, e, and i
1. stayed 8. daily 15. slightly
2. brain 9. breathe 16. payment
3. thief 10. meanwhile 17. brief
4. meat 11. believes 18. tray
5. flight 12. tonight 19. byte
6. style 13. increased 20. raise
7. delighted 14. explained
Challenge Words
21. tight
22. type
23. remain
24. chief
25. pleaded
Lesson 3, Yang the Third and Her Impossible Family
Words with long o and long u
1. soul 8. stole 15. continue
2. smoke 9. prove 16. issue
3. move 10. produce 17. ego
4. clue 11. juice 18. argue
5. fruits 12. drove 19. cruise
6. lose 13. Tuesday 20. toll
7. chose 14. rescue
Challenge Words
21. forehead
22. include
23. rehearsal
24. fourth
25. course
Lesson 4, Dear Mrs. Parks
Vowels before r
1. parts 8. backward 15. squirrel
2. history 9. border 16. harmful
3. warning 10. prepared 17. charms
4. declare 11. harsh 18. disorder
5. despair 12. research 19. favored
6. shirt 13. carnival 20. remark
7. learning 14. particular
Challenge Words
21. correspondence
22. discouraged
23. generations
24. constitution
25. literature
Lesson 5, Elena
Words with /s/, /z/, and /sh/
1. percent 8. notice 15. detention
2. absence 9. scene 16. constitution
3. years 10. station 17. advertisement
4. refused 11. social 18. advise
5. ancient 12. special 19. cities
6. pressure 13. parachute 20. chalet
7. machine 14. specialty
Challenge Words
21. sincere
22. tissue
23. resident
24. magician
25. medicine
Lesson 6, We'll Never Forget You, Roberto Clemente
1. treasure 8. adventure 15. temperature
2. capture 9. mixture 16. legislature
3. feature 10. structure 17. immature
4. pleasure 11. pasture 18. leisure
5. measure 12. culture 19. premature
6. creature 13. literature 20. signature
7. picture 14. furniture
Challenge Words
21. recruited
22. persistent
23. league
24. devastation
25. inspiration
Lesson 7, Folk Tales from Asia
Words ending in -ed and -ing
1. charged 8. tasted 15. fried
2. spied 9. receiving 16. created
3. moving 10. becoming 17. tallied
4. trying 11. lying 18. carried
5. practicing 12. dying 19. revising
6. injured 13. realized 20. wearing
7. carrying 14. provided
Challenge Words
21. approval
22. glimpse
23. braggart
24. sufficient
25. qualities
Lesson 8, Iditarod Dream
1. American 8. harbor 15. weather
2. frozen* 9. father 16. beckon
3. button 10. color 17. cannon
4. chapter 11. ancestor 18. comparison
5. tractor 12. hidden 19. elder
6. golden 13. hamburger 20. turban
7. taken 14. theater
Challenge Words
21. desperate
22. frostbitten
23. laden
24. emergency
25. straighten
Lesson 9, Woodsong
1. level 8. battle 15. individual
2. double 9. candle 16. material
3. metal 10. article 17. angel
4. evil 11. equal 18. camel
5. travel 12. civil 19. illegal
6. couple 13. capital 20. stencil
7. needle 14. original
Challenge Words
21. brindle
22. possible
23. personality
24. wilderness
25. humorous
Lesson 10, Island of the Blue Dolphins
Plurals
1. crises 8. armies 15. tomatoes
2. knives 9. briefs 16. canoes
3. media 10. videos 17. berries
4. roofs 11. heroes 18. loaves
5. pianos 12. data 19. lives
6. waves 13. bacteria 20. messages
7. wishes 14. oxen
Challenge Words
21. foxes
22. breaths
23. tragedies
24. buses
25. skis
Lesson 11, Everglades
Words with "silent" letters
1. island 8. walked 15. aisle
2. design 9. talk 16. foreign
3. calm 10. chalk 17. lightning
4. column 11. wrinkled 18. benign
5. sword 12. wrong 19. glistened
6. half 13. autumn 20. resign
7. yolk 14. solemn
Challenge Words
21. orchids
22. slaughter
23. clambered
24. knowledge
25. habitat
Lesson 12, Summer of Fire
Compound words
1. basketball 8. skateboard 15. strawberry
2. seventy-five 9. homework 16. freeway
3. rock band 10. two-thirds 17. car pool
4. everybody 11. high school 18. comic strip
5. fireplace 12. railroad 19. fine arts
6. anything 13. motorcycle 20. forty-two
7. takeoff 14. vice president
Challenge Words
21. breathtaking
22. thunderstruck
23. runner-up
24. half hour
25. paper clip
Lesson 13, Oceans
Troublesome words and phrases
1. anyway 8. a lot 15. there's
2. any way 9. its 16. theirs
3. all right 10. it's 17. anyone
4. every one 11. your 18. any one
5. everyone 12. you're 19. altogether
6. already 13. who's 20. all together
7. all ready 14. whose
Challenge Words
21. continents
22. wavelength
23. particles
24. dangerous
25. eventually
Lesson 14, Seeing Earth From Space
Suffixes: -ant and -ent
1. absent 8. moment 15. restaurant
2. servant 9. resident 16. patient
3. present 10. ignorant 17. government
4. instant 11. pleasant 18. statement
5. accident 12. distant 19. migrant
6. assistant 13. innocent 20. participant
7. current 14. intelligent
Challenge Words
21. efficacious
22. orbiting
23. continent
24. magma
25. landforms
Lesson 15, The Case of the Flying-Saucer People
Suffixes: -tion and -ness
1. translation 8. operation 15. education
2. laziness 9. sickness 16. transportation
3. population 10. kindness 17. federation
4. invention 11. closeness 18. subtraction
5. generation 12. forgiveness 19. smallness
6. examination 13. pollution 20. lateness
7. situation 14. imagination
Challenge Words
21. science-fiction
22. questions*
23. air-conditioning
24. scientific
25. atmosphere
Lesson 16, Hattie's Birthday Box
Suffixes -able and -less
1. capable 8. tasteless 15. excitable
2. careless 9. helpless 16. believable
3. desirable 10. senseless 17. bottomless
4. admirable 11. priceless 18. comfortable
5. restless 12. useless 19. dampness
6. available 13. reliable 20. understandable
7. debatable 14. undeniable
Challenge Words
21. decorations
22. reciting
23. memorized
24. tongue
25. precious
Lesson 17, William Shakespeare & the Globe
Suffixes: -eer, -ist, -ian, -or, and -er
1. engineer 8. tourist 15. refrigerator
2. dentist 9. scientist 16. guardian
3. librarian 10. visitor 17. commander
4. director 11. investigator 18. physician
5. customer 12. senator 19. politician
6. pioneer 13. astronomer 20. leader
7. counselor 14. character
Challenge Words
21. historian
22. performer
23. volunteer
24. disaster
25. spectator
Lesson 18, The World of William Joyce Scrapbook
Prefixes: non-, in-, and un-
1. nontoxic 8. unless 15. inconsistent
2. income 9. indeed 16. unfortunately
3. unknown 10. nonprofit 17. nonfiction
4. unusual 11. invisible 18. nonviolent
5. involved 12. nonsense 19. uncover*
6. unlike 13. incredible 20. informal
7. inspector 14. uncomfortable
Challenge Words
21. inexperienced
22. unproductive
23. nonverbal
24. unsightly
25. inspiration
Lesson 19, Satchmo's Blues
Prefixes re- and inter-
1. remove 8. relocate 15. intersection
2. interview 9. international 16. recommend
3. repeat 10. review 17. interject
4. interrupt 11. interpret 18. intervene
5. respect 12. interstate 19. resource
6. interfere 13. remarkable 20. remained
7. represent 14. intermediate
Challenge Words
21. interdependent
22. interconnect
23. recognize
24. reassure
25. recede
Lesson 20, Evelyn Cisneros: Prima Ballerina
Prefixes: dis- and de-
1. discuss 8. details 15. disadvantage
2. deduct 9. demand 16. demonstrated
3. dismissed 10. determined 17. defeat
4. develop 11. depressed 18. descent
5. disease 12. defense 19. disappear
6. discount 13. disappointing 20. disconnect
7. disturb 14. discouraged
Challenge Words
21. distract
22. decision
23. deliver
24. distressed
25. distribute
Lesson 21, Off and Running
Prefixes: pre- and pro-
1. prevent 8. promise 15. pronunciation
2. program 9. previous 16. professional
3. predict 10. protect 17. pretest
4. project 11. property 18. preview
5. pretend 12. propose 19. proclaim
6. process 13. precede 20. progress
7. prefer 14. proceed
Challenge Words
21. ceramic
22. opponent
23. aquarium
24. resources
25. acquaintance
Lesson 22, Little by Little
VCCV (vowel-consonant-consonant-vowel) words
1. pretty 8. perhaps 15. challenge
2. service 9. attack 16. pretzel
3. thunder 10. entire 17. survive
4. blanket 11. chimney 18. pillow
5. effort 12. tunnel 19. hunger
6. fellow 13. effect 20. college
7. subject 14. suspended
Challenge Words
21. determined
22. autobiography
23. disease
24. eternal
25. composition
Lesson 23, Dear Mr. Henshaw
More words with -ed or -ing
1. wondering 8. admitted 15. canceled
2. fastened 9. referred 16. developing
3. permitting 10. bothered 17. scrubbing
4. controlled 11. submitted 18. upsetting
5. listening 12. whispered 19. wondered
6. regretted 13. transferred 20. quarreled
7. suffered 14. occurring
Challenge Words
21. triggered
22. pretended
23. commenting
24. delaying
25. squatted
Lesson 24, Frindle
VCCCV (vowel-consonant-consonant-consonant-vowel) words
1. subtract 8. instead 15. Christmas
2. distract 9. Congress 16. construction
3. contract 10. English 17. luncheon
4. complex 11. conflict 18. complaint
5. distrust 12. exchange 19. transform
6. extra 13. pumpkin 20. although
7. improve 14. sandwich
Challenge Words
21. cassette
22. devised
23. persuaded
24. deceive
25. dictionary
Lesson 25, The Fun They Had
VCV (vowel-consonant-vowel) words
1. slogan 8. humor 15. balance
2. radar 9. salad 16. radio
3. minutes 10. eleven 17. basis
4. honest 11. closet 18. decent
5. second 12. model 19. fanatic
6. virus 13. volcano 20. novel
7. shadow 14. private
Challenge Words
21. diary
22. textbooks
23. calculated
24. superior
25. centuries
Lesson 26, Across the Wide Dark Sea
V V (vowel-vowel) words
1. quiet 8. Indian 15. triumph
2. trial 9. fluid 16. violent
3. fuel 10. violin 17. theater
4. poem 11. museum 18. liar
5. diet 12. dial 19. leotard
6. nucleus 13. ruin 20. koala
7. cruel 14. influence
Challenge Words
21. journey
22. obstacle
23. accomplishment
24. desperate
25. calm
Lesson 27, Name This American
Contractions
1. he's 8. shouldn't 15. aren't
2. couldn't 9. how's 16. here's
3. she'll 10. weren't 17. they'll
4. doesn't 11. there's 18. we'll
5. we'd 12. wouldn't 19. you'd
6. that's 13. what's 20. he'd
7. hadn't 14. where's
Challenge Words
21. celebrities
22. congratulations
23. continue
24. astronomer
25. guarantee
Lesson 28, What's the Big Idea Ben Franklin?
Related words
1. describe 8. application 15. collide
2. description 9. compete 16. collision
3. nature 10. competition 17. multiply
4. natural 11. divide 18. multiplication
5. televise 12. division 19. bounty
6. television 13. beauty 20. bountiful
7. apply 14. beautiful
Challenge Words
21. exception
22. explanation
23. ambassador
24. delegate
25. convention
Lesson 29, Lewis and Clark
Words with three syllables
1. industry 8. horizon 15. average
2. buffalo 9. favorite 16. period
3. exciting 10. library 17. amazement
4. terrible 11. substitute 18. bicycle
5. electric 12. typical 19. conference
6. dangerous 13. dinosaur 20. family
7. exercise 14. curious
Challenge Words
21. numerous
22. exhaustion
23. customary
24. persistent
25. reunion
Lesson 30, Black Frontiers
Words from Spanish
1. canyon 8. mosquito 15. bonanza
2. tornado 9. plaza 16. avocado
3. breeze 10. pueblo 17. mesa
4. cafeteria 11. chili 18. burro
5. coyote 12. alligator 19. enchilada
6. tomato 13. rodeo 20. burrito
7. barbecue 14. patio
Challenge Words
21. yucca
22. hurricane
23. chaps
24. arroyo
25. matador
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