Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

This science fair project idea demonstrates that plants give off water.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science fair project idea explores whether white light can be separated into different colors.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Test whether plants can grow without sunlight and water.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This biodiversity project examines the biodiversity in your own backyard.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.