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.

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

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

Your child can make a sweet and savory spinach strawberry salad; two ingredients that come together for a light and fresh summer dish!

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

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

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

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

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

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

Your second grader can honor two renowned U.S. Presidents--Abraham Lincoln and George Washington--by crafting larger-than-life pennies and quarters!

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

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

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

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

Help your third grader create a Venn diagram fantasy creature by combining two different creatures to create a fantasy creature based on their similarities.

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

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

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!

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

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

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

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

Compare fractions in this two-player math game. The objective of the games is to work together to determine who has created the largest fraction.

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

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