Mary Lindeen

Carbon is everywhere. It is constantly moving between the air, water, rocks, and living t...

Igneous rocks, sedimentary rocks, and metamorphic rocks make up the three main types of r...

Using technology to bully others is a serious problem many kids face. Learn about cyberbu...

Websites include all kinds of interesting information. But how can you tell if a site is ...

What you put on the Internet may stay there forever. So how can you protect your online r...

The information you find online can sometimes feel overwhelming. Which online sources can...

Rhyming text make learning the days of the week a snap! These nonfiction auido-books pro...

There’s smoke coming from a building and sirens blaring in the distance. A fire tru...

Where does our garbage go after we throw it away? These huge machines pick up our garbage...

These huge machines travel on the ocean and have many different uses. A ship has a huge e...

These machines are very important in keeping a farm running smoothly. A tractor pulls oth...

All aboard! There are all different kinds of trains that accomplish various tasks. Speed ...

Airplanes come in all shapes and sizes, from small to jumbo. Some airplanes can fly as fa...

A new road needs to be built, but first a grader must flatten the dirt underneath. A grad...

Did you know that some big trucks have 18 wheels? All different kinds of trucks travel th...

These important machines make sure people can still use the roads in wintertime. They cle...

Seven days in a week— They are always the same. Which day is the first one? Do you ...

Seven days in a week are always the same. The first day is Sunday. What’s the next ...

Seven days in a week are always the same. First Sunday, then Monday—what’s th...

The seven days of the week are always the same. Sunday, Monday, then Tuesday: what’...

Seven days in a week are always the same: Sunday, Monday, Tuesday, Wednesday: What’...

Seven days in a week are always the same. What’s the day after Thursday? Do you kno...

Seven days in a week are always the same. What comes after Friday? Do you know its name?

The seven days in a week are always the same. Do you know what they are? Let’s say ...