In this science fair project, young children discover what happens when two fluids that have different densities get together.

This project compares the strength of one, two, and three-ply toilet paper.

In this project, you will observe and record changes in sunspots over two weeks.

Young artists will combine two animals into one in this imaginative art-project-slash-game!

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

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.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

Here are two streamlined breakfast ideas so that mom not only gets a delicious breakfast for Mother's Day, but a clean kitchen too!

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Coil your daughter's two favorite colors into a wearable pendant with just a few scraps of felt!

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

Transform a single sheet of card stock into a double-sided painting of opposites: on one side, a bright daytime landscape, on the other, a dusky evening scene.

Drift away with this charming craft that lets your child create a paper hot air balloon or two.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Help your first grade child figure out contractions and their original two words by playing this simple game, Contraction Concentration!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

All your preschooler needs to create a personalized Halloween memento is their two hands and some black paint.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

In this activity, your child will experience multitasking, then mindfulness and compare the two in terms of productivity and calmness.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Introduce your fifth grader to the Kinara, part of the Kwanzaa tradition, by playing this fast-paced, two player game!

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Want to reinforce new middle school math terms (variables, equations), while helping your child solve simple one and two-step equations?

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Here are two fun, rhythmic jump rope chants to help your first grader learn the days of the week, practice reading skills, and stay fit!

Use two toilet paper rolls to make a pair of homemade binoculars and let the games begin. Here's how:

Help your child improve his coin counting skills in these two math games that have him race to reach $1.00.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.