Showing Results for compare with same denominators 1

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Determine which video game elevates the heart rate best and burns the most calories.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Did you know magnifying glasses are magic? This hands-on activity has kids using magnifying glasses to engage with the world around them and look close to examine what they find.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

This project examines which type of dance burns the most calories.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.