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craters


big holes in the ground

I can see the craters on the moon when I look through my telescope.


photo credit: Shutterstock

craters

climate


the usual weather in a place

The climate in the U.S. Midwest is cold and snowy in the winter.


photo credit: John Hart/Wisconsin State Journal/AP

climate

pioneers


the first people to explore or settle in a new place

Pioneers in the 1800s often traveled in covered wagons.


photo credit: Greg Ryan/Alamy

pioneers

greenhouse


a glass building used for growing and protecting plants

Vegetables grown in a greenhouse can be just as flavorful as ones grown outside.


photo credit: Shutterstock

greenhouse

radiation


a kind of energy that can be dangerous if there’s too much of it

Microwaves use small amounts of radiation to cook food.


photo credit: Shutterstock

radiation
Next
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prowled


moved in a secret way while searching for something

The cougar prowled in the woods, hunting for its prey.


photo credit: Grambo Grambo/Getty

prowled

artifacts


objects from the past

Many ancient artifacts were found in King Tut’s tomb.


photo credit: Shutterstock

artifacts

salvaged


saved

Fatima salvaged her grade for the semester by acing her final exam.


photo credit: Masterfile RF

salvaged

glistening


bright and shiny

The moonlight was glistening on the water.


photo credit: Shutterstock

glistening

wreckage


broken parts or pieces of something

The car accident left behind a massive heap of wreckage.


photo credit: David Goldman/AP

wreckage
Next
Prev

cricket


a game played with a bat and a small ball on a round field

Cricket is one of the most popular sports in the world.


photo credit: Shutterstock

cricket

lacked


did not have

Camella lacked the money she needed to buy a bike.


photo credit: istockphoto.com

lacked

immigrated


came into a new country to live

My grandfather immigrated to America from China when he was a young man.


photo credit: Shutterstock

immigrated

encouraged


said nice things to help someone feel confident

Andy’s brother encouraged him to try out for the baseball team.


photo credit: Masterfile RF

encouraged

gaped


stared with mouth open

Julio gaped at the incredible sight of the Grand Canyon.


photo credit: istockphoto.com

gaped
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stagger


to move in an unsteady way

Drew had to stagger off the field after he hurt his ankle.


photo credit: istockphoto.com

stagger

environmental


having to do with nature and how human activity affects it

Environmental disasters, like oil spills, have killed many animals.


photo credit: istockphoto.com

environmental

species


a certain type of animal or plant

Chris saw many species of monkey at the wildlife park.


photo credit: Minden

species

preen


clean feathers with a beak

At the zoo, I saw the penguins preen themselves.


photo credit: Mike Lawrence/Alamy

preen

ecosystem


all of the plants and animals that live in one area

Cactuses are part of a desert ecosystem.


photo credit: Eye Ubiquitous / Alamy

ecosystem
Next
Problem loading video..
Prev

craters


big holes in the ground

I can see the craters on the moon when I look through my telescope.


photo credit: Shutterstock

craters

climate


the usual weather in a place

The climate in the U.S. Midwest is cold and snowy in the winter.


photo credit: John Hart/Wisconsin State Journal/AP

climate

pioneers


the first people to explore or settle in a new place

Pioneers in the 1800s often traveled in covered wagons.


photo credit: Greg Ryan/Alamy

pioneers

greenhouse


a glass building used for growing and protecting plants

Vegetables grown in a greenhouse can be just as flavorful as ones grown outside.


photo credit: Shutterstock

greenhouse

radiation


a kind of energy that can be dangerous if there’s too much of it

Microwaves use small amounts of radiation to cook food.


photo credit: Shutterstock

radiation
Next
Problem loading video..
Prev

prowled


moved in a secret way while searching for something

The cougar prowled in the woods, hunting for its prey.


photo credit: Grambo Grambo/Getty

prowled

artifacts


objects from the past

Many ancient artifacts were found in King Tut’s tomb.


photo credit: Shutterstock

artifacts

salvaged


saved

Fatima salvaged her grade for the semester by acing her final exam.


photo credit: Masterfile RF

salvaged

glistening


bright and shiny

The moonlight was glistening on the water.


photo credit: Shutterstock

glistening

wreckage


broken parts or pieces of something

The car accident left behind a massive heap of wreckage.


photo credit: David Goldman/AP

wreckage
Next
Prev

cricket


a game played with a bat and a small ball on a round field

Cricket is one of the most popular sports in the world.


photo credit: Shutterstock

cricket

lacked


did not have

Camella lacked the money she needed to buy a bike.


photo credit: istockphoto.com

lacked

immigrated


came into a new country to live

My grandfather immigrated to America from China when he was a young man.


photo credit: Shutterstock

immigrated

encouraged


said nice things to help someone feel confident

Andy’s brother encouraged him to try out for the baseball team.


photo credit: Masterfile RF

encouraged

gaped


stared with mouth open

Julio gaped at the incredible sight of the Grand Canyon.


photo credit: istockphoto.com

gaped
Next
Problem loading video..
Prev

stagger


to move in an unsteady way

Drew had to stagger off the field after he hurt his ankle.


photo credit: istockphoto.com

stagger

environmental


having to do with nature and how human activity affects it

Environmental disasters, like oil spills, have killed many animals.


photo credit: istockphoto.com

environmental

species


a certain type of animal or plant

Chris saw many species of monkey at the wildlife park.


photo credit: Minden

species

preen


clean feathers with a beak

At the zoo, I saw the penguins preen themselves.


photo credit: Mike Lawrence/Alamy

preen

ecosystem


all of the plants and animals that live in one area

Cactuses are part of a desert ecosystem.


photo credit: Eye Ubiquitous / Alamy

ecosystem
Next
Problem loading video..
Prev

craters


big holes in the ground

I can see the craters on the moon when I look through my telescope.


photo credit: Shutterstock

craters

climate


the usual weather in a place

The climate in the U.S. Midwest is cold and snowy in the winter.


photo credit: John Hart/Wisconsin State Journal/AP

climate

pioneers


the first people to explore or settle in a new place

Pioneers in the 1800s often traveled in covered wagons.


photo credit: Greg Ryan/Alamy

pioneers

greenhouse


a glass building used for growing and protecting plants

Vegetables grown in a greenhouse can be just as flavorful as ones grown outside.


photo credit: Shutterstock

greenhouse

radiation


a kind of energy that can be dangerous if there’s too much of it

Microwaves use small amounts of radiation to cook food.


photo credit: Shutterstock

radiation
Next
Problem loading video..
Prev

prowled


moved in a secret way while searching for something

The cougar prowled in the woods, hunting for its prey.


photo credit: Grambo Grambo/Getty

prowled

artifacts


objects from the past

Many ancient artifacts were found in King Tut’s tomb.


photo credit: Shutterstock

artifacts

salvaged


saved

Fatima salvaged her grade for the semester by acing her final exam.


photo credit: Masterfile RF

salvaged

glistening


bright and shiny

The moonlight was glistening on the water.


photo credit: Shutterstock

glistening

wreckage


broken parts or pieces of something

The car accident left behind a massive heap of wreckage.


photo credit: David Goldman/AP

wreckage
Next
Prev

cricket


a game played with a bat and a small ball on a round field

Cricket is one of the most popular sports in the world.


photo credit: Shutterstock

cricket

lacked


did not have

Camella lacked the money she needed to buy a bike.


photo credit: istockphoto.com

lacked

immigrated


came into a new country to live

My grandfather immigrated to America from China when he was a young man.


photo credit: Shutterstock

immigrated

encouraged


said nice things to help someone feel confident

Andy’s brother encouraged him to try out for the baseball team.


photo credit: Masterfile RF

encouraged

gaped


stared with mouth open

Julio gaped at the incredible sight of the Grand Canyon.


photo credit: istockphoto.com

gaped
Next
Problem loading video..
Prev

muskets


long guns that fire round bullets

Soldiers in the Revolutionary War used muskets in battle.


photo credit: istockphoto.com

muskets

scalpel


a small knife used in surgery

The surgeon used her scalpel to begin the surgery.


photo credit: istockphoto.com

scalpel

enlist


sign up

Mark plans to enlist in the Navy after he graduates from high school.


photo credit: Maury/EPA/REX/Shutterstock

enlist

independence


freedom

America declared its independence from Britain in 1776.


photo credit: Album/Prisma/Album/Superstock

independence

undertakers


people who prepare dead bodies to be buried

Undertakers work in the basements of funeral homes.


photo credit: istockphoto.com

undertakers
Next
Prev

stagger


to move in an unsteady way

Drew had to stagger off the field after he hurt his ankle.


photo credit: istockphoto.com

stagger

environmental


having to do with nature and how human activity affects it

Environmental disasters, like oil spills, have killed many animals.


photo credit: istockphoto.com

environmental

species


a certain type of animal or plant

Chris saw many species of monkey at the wildlife park.


photo credit: Minden

species

preen


clean feathers with a beak

At the zoo, I saw the penguins preen themselves.


photo credit: Mike Lawrence/Alamy

preen

ecosystem


all of the plants and animals that live in one area

Cactuses are part of a desert ecosystem.


photo credit: Eye Ubiquitous / Alamy

ecosystem
Next
Problem loading video..
Prev

ecosystem


all of the plants and animals that live in one area

Cactuses are part of a desert ecosystem.


photo credit: Eye Ubiquitous / Alamy

ecosystem

environmental


having to do with nature and how human activity affects it

Environmental disasters, like oil spills, have killed many animals.


photo credit: istockphoto.com

environmental

species


a certain type of animal or plant

Chris saw many species of monkey at the wildlife park.


photo credit: Minden

species

preen


clean feathers with a beak

At the zoo, I saw the penguins preen themselves.


photo credit: Mike Lawrence/Alamy

preen

stagger


to move in an unsteady way

Drew had to stagger off the field after he hurt his ankle.


photo credit: istockphoto.com

stagger

undertakers


people who prepare dead bodies to be buried

Undertakers work in the basements of funeral homes.


photo credit: istockphoto.com

undertakers

scalpel


a small knife used in surgery

The surgeon used her scalpel to begin the surgery.


photo credit: istockphoto.com

scalpel

enlist


sign up

Mark plans to enlist in the Navy after he graduates from high school.


photo credit: Maury/EPA/REX/Shutterstock

enlist

independence


freedom

America declared its independence from Britain in 1776.


photo credit: Album/Prisma/Album/Superstock

independence

muskets


long guns that fire round bullets

Soldiers in the Revolutionary War used muskets in battle.


photo credit: istockphoto.com

muskets

lacked


did not have

Camella lacked the money she needed to buy a bike.


photo credit: istockphoto.com

lacked

immigrated


came into a new country to live

My grandfather immigrated to America from China when he was a young man.


photo credit: Shutterstock

immigrated

encouraged


said nice things to help someone feel confident

Andy’s brother encouraged him to try out for the baseball team.


photo credit: Masterfile RF

encouraged

gaped


stared with mouth open

Julio gaped at the incredible sight of the Grand Canyon.


photo credit: istockphoto.com

gaped

cricket


a game played with a bat and a small ball on a round field

Cricket is one of the most popular sports in the world.


photo credit: Shutterstock

cricket

artifacts


objects from the past

Many ancient artifacts were found in King Tut’s tomb.


photo credit: Shutterstock

artifacts

salvaged


saved

Fatima salvaged her grade for the semester by acing her final exam.


photo credit: Masterfile RF

salvaged

glistening


bright and shiny

The moonlight was glistening on the water.


photo credit: Shutterstock

glistening

wreckage


broken parts or pieces of something

The car accident left behind a massive heap of wreckage.


photo credit: David Goldman/AP

wreckage

prowled


moved in a secret way while searching for something

The cougar prowled in the woods, hunting for its prey.


photo credit: Grambo Grambo/Getty

prowled

climate


the usual weather in a place

The climate in the U.S. Midwest is cold and snowy in the winter.


photo credit: John Hart/Wisconsin State Journal/AP

climate

pioneers


the first people to explore or settle in a new place

Pioneers in the 1800s often traveled in covered wagons.


photo credit: Greg Ryan/Alamy

pioneers

greenhouse


a glass building used for growing and protecting plants

Vegetables grown in a greenhouse can be just as flavorful as ones grown outside.


photo credit: Shutterstock

greenhouse

radiation


a kind of energy that can be dangerous if there’s too much of it

Microwaves use small amounts of radiation to cook food.


photo credit: Shutterstock

radiation

craters


big holes in the ground

I can see the craters on the moon when I look through my telescope.


photo credit: Shutterstock

craters
Next