Showing Results for add and subtract

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Making your own glass cleaner is easy, effective and inexpensive!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.