#### Math

**Math Flash Cards**

Choose the addition flash cards, subtraction, multiplication or a combination
of all three. Test your math skills from 0 - 25 up to 0 - 1000.
Answer math questions correctly in 60 seconds. Great math practice and
lots of fun!
**Math Flash Two**

A fun math game to test your skills.

**Math Worksheets**

Lots and lots of help with math homework. Print and practice with addition,
subtraction, multiplication, division and all kinds of very cool number concept
worksheets. Aim high!

**Sudoku**

Lots and lots of fun sudoku games to print and play, or you can play online.

**Roman Numeral Converter Tool**

Convert integers into roman numerals or roman numerals into integers.

**Addition Game**

Match the number sentences with the correct answers. No time limit.

**Algebra Problem Solver**

Solve those pesky math problems with the Algebra Problem Solver.
Give it a try. Instructions included. Runs with Java.

**A Simple Math Game**

Practice addition, subtraction and multiplication with this simple, fun, arcade-type math game.

**The Math Bully Game**

How fast are you able to solve random math problems? Test yourself with the Math Bully Game.

**The Lemonade Stand**

Buy low, sell high! Earn money in your own front yard. Just watch out for the weather.

**Multiplication Games**

Match multiplication questions with the correct answers. Again, no time limit.

**Multiplication Tables 1 - 12**

It's the tables in a table. A very cool way to see how all the numbers
line up. Find the patterns.

**Number Block Puzzles**

Lots of math fun with these puzzles to print and play off-line.
Fill in the missing numbers. No Java required.

**The Percentage Converter**

No more worries about those pesky percentage problems. Have fun converting with
this nifty calculator.

**Playing with Stereograms**

Stereograms show 3D mathematical objects in space. This
Java applet demonstrates how changing angles changes the way objects appear.
It's not a game, but it's lots of fun to fiddle with and try to see the images in
3D. Learn a little bit about how we see things, too.

**The Toothpick Puzzle - by Nicholas Exner**

Examine geometry first hand by using this web activity to solve the problem of creating
five squares by arranging twelve toothpicks. Java required to play.

#### Science

**Periodic Table of the Elements**

The Periodic Table shows all the elements we know about grouped into rows and columns
with something in common. This Java applet is not a game, but tells you about
each of the elements in a very cool way. Works in Netscape 3+ and IE 4+ or an
applet-viewer browser.

**Convert It!**

Need to know how many ounces in a gallon? Or do you need to know how many grams
in a kilogram? Use the BlackDog's equivalent conversion tables to convert just about
anything to just about anything else!