Many cities around the world are known by landmarks created for World's Fair exhibitions. Is your city one of them?

Young historians learn about four pioneering female scientists as they hone their research skills in this Who Am I? Women in Science worksheet.

The Eiffel Tower was built as the entrance to the 1889 World's Fair in Paris. Believe it or not, some people considered it an eyesore!

Get to know the Apollo 11 space mission in this science and history worksheet!

Dive into the deep, vast world of ocean science with this introductory sheet on the world's different oceans.

This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

In a world without airplanes, The Wright Brothers flew in the face of science, so to speak, and invented the first modern airplane.

Your child can learn about the last manned space flight with this worksheet that works on history, reading comprenshion and science all in one.

Young historians learn about four pioneering female astronauts as they hone their research skills in this Who Am I? Women in Science worksheet.

Learn what Constitution Day is and why it’s important in this engaging passage!

Greetings, from the great United States! Help your budding geographer learn his 50 states with these fun postcards.

Learn a bit about local history of the 50 states with these postcards. Your child can color in these cards as he learns his states.

Can your child name all 50 states? Help her master U.S. geography with some fun postcards that she can color herself!

This history and reading project that traces the history of medical care, helps kids understand how the doctor's office came to be.

Can your little geographer name all 50 U.S. states? Help him review the states with a fun set of state postcards to color.

Get to know the 50 U.S. states with a fun series of postcards! Young geographers can color these cards as they learn a bit about each state.

Each of our 50 states is unique in its own way! Learn about the U.S. states with this set of postcards to color.

Get a taste of local history and culture for each of the 50 U.S. states! Kids can learn some fun facts about each state as they color these vintage postcards.

How well do you know your 50 U.S. states? Enjoy a fun coloring activity to help your child learn her states, and some fun facts about them as well.

Get acquainted with our 50 great states with a set of vintage state postcards, ready to color! Your child will learn fun facts about each state as she colors.

Color your own vintage state postcards with this fun geography series! Your child will learn a bit of culture and history about each state as he colors.

Learn all about the thaumatrope, one of the earliest versions of a moving picture, with this fun worksheet and paper project!

This worksheet helps kids practice their budding research skills as they color the flag and find out Alaska state facts.

Match famous immigrants with their exploits in this history worksheet. Don't know history? Don't worry! Look for hints based on people changing their names!

Discover the reasons laws exist and the ways they help people!

In this Court Cases worksheet, students read descriptions of five landmark decisions, then match them to their correct name.

Submerge yourself in the fascinating history of submarines! Your little inventor will get a taste of the early stages of this important technology.

Take flight with this ode to inventors! See the history of the helicopter, from its conception in ancient China to the modern vehicle it is today.