Challenge your learner to design and build a city of their own in this creative engineering activity.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project examines how seeds hitchhike on animals and clothing.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Is your child a young ornithologist in the making?

How do organic materials become soil? This science experiment measures what materials biodegrade.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea provides evidence that air is everywhere and takes up space.

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!

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Examine the effect of pressure on carbonation in soda.