oo/ou/ow words
aw/au words
ew, ui, ue words
kn, mb, wr words
soft c words
100

stood

stood

100

lawn

lawn

100

blue

blue

100

knee

knee

100

ice

ice

200

growl

growl

200

claw

claw

200

fruit

fruit

200

crumb

crumb

200

space

space

300

scooter

scooter

300

pause

pause

300

screw

screw

300

wreck

wreck

300

cent

cent

400

soundproof

soundproof

400

launching

launching

400

withdrew

withdrew

400

knuckle

knuckle

400

celery

celery

500

woodpecker

woodpecker

500

August

August

500

Tuesday

Tuesday

500

wrinkly

wrinkly

500

cemented

cemented