Math

A+ Math 

Here you can do flashcards with adding, subtracting, rounding, multiplying and dividing on the computer! The game will tell you if the answer is correct, and if you get it wrong, it tells you the right one. There are two forms of cards; one requires Java, and one does not. The non-Java cards include fractions.

AAAMath.com
This site lets you review concepts and practice them online. It scores you and tells you the correct answers. The concepts include most taught in Grade 5.

Adjustable Spinner 
Here you can practice probability by playing with a spinner that you can change.

Angles
You can practice identifying angles and the game will tell you whether or not your answers are correct.

Area Explorer 
Here you can create a shape by selecting the perimeter. The game creates the shape and you type the area. The game tells you whether or not your answer is correct and you can try new shapes that are the same or different sizes. Is the area always the same if the shape's perimeter is the same?

Arithmetic Four 
Here you chose the operations and compete against a friend (or yourself) to win tokens. You win when you have four tokens in a row.

Coloring Multiples in Pascal's Triangle
In this game you click on all of the numbers that are divisible by the number the computer gives you. You can make the triangle larger or smaller to change the level of difficulty. You can also keep score.

Coloring Remainders in Pascal's Triangle
This game is similar to the previous game except that you will be looking for remainders left over after dividing the numbers by the number the computer gives you. You can make the triangle larger or smaller to change the level of difficulty. You can also keep score.

Comparison Estimator 
In this game you estimate the number of shapes in two boxes and decide which one has more. The game keeps track of your correct guesses for you.

Factorize
In this game you create an array that demonstrates the factors of a number given to you by the computer. After each correct answer you get to demonstrate another set of factors. When you have all of the factors, a happy face will appear.

Fraction Pointer 
On this site you click to create fractions of boxes or circles. You have to create two fractions, the first one smaller than the second one!

General Coordinates Game
This is a very easy game where you plot the coordinates of a picture on four quadrant grid. If this game is too difficult, try Simple Coordinates Game where the grid is only two quadrants.

KidZone Free Printable Worksheets - Grades 4 - 5
This site has lots of printable Math worksheets.

Math Baseball 
This site lets you play baseball using basic facts to score runs!

More or Less Estimator
In this game you estimate the length of a curved line or number of shapes. The game will tell you whether or not you are correct and keeps your score.

Perimeter Explorer 
Here you can create a shape by selecting the area. The game creates the shape and you type the perimeter. The game tells you whether or not your answer is correct and you can try new shapes that are the same or different sizes. Is the perimeter always the same if the shape's area is the same?

Print and Learn Math Sheets 
Here you can print out lots of worksheets to practice Math skills at home.

Shape Explorer 
Here you adjust the maximum size of the shape, and the computer creates it for you. You calculate the area and perimeter and the computer tells you whether or not you are correct.

Teacher Link from Utah State University
This site has very large downloadable workbooks that let you add, subtract, multiply and divide. You will have to print these on your printer to do the worksheets. There are some handwriting worksheets as well, but they only have capital letters.

Tessellate!
This is a great site where you can experiment with tessellating shapes. You get to alter the look and color of the shapes and then watch them tesselate into a picture.

Understanding Experimental Probability
This game lets you try different ways to explore the probability of a spinner or dice landing on a certain color or number. The game tallies the results so you can see how you are doing with your estimates!

Science

Electricity

How Stuff Works - Electric Motors 
This site has lots of information about how electric motors work in a lot of different situations.

How Stuff Works - Light Bulbs
This site has lots of information about how light bulbs work.

Theatre of Electricity
This is a site with lot of information about electricity and lightning.

What is Electricity?
You can learn what electricity is (and isn't) from this site.

Voltage 
This site explains what voltage is and how it works.

Magnetism

Magnetism 
This is a great site from NASA to learn about magnetism and how it works.

Magnetism
This is a great overview of magnetism and how it influences our world.

Wetlands

The Water Cycle the Missouri Botanical Garden by The Evergreen Project, Inc., Saint Louis 
Learn about the water cycle and link to worksheets to test what you know.

Canadian Hinterland Who's Who from the Canadian Wildlife Service
Pictures and descriptions of almost 80 different Canadian birds and mammals. Video clips are also available.

Wetlands from Environment Canada
What wetlands are and what they do.

Social Studies

Canada's Links to Other Countries

U.S. – Canada Relations – The Free Dictionary dot com
This site gives an overview of the ongoing and historical relationship.

U.S.-Canada Relations – The Fact Index
Another site with an overview of the historical relationship between the US and Canada.