Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Forget model kits! Promote creativity by having your child construct a dinosaur model using marshmallows and toothpicks.

Kids get to play mad scientist in this wacky drawing game that's a great way to help kids to mellow out after the high-energy antics of recess.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Your first grader will enjoy creating his own leprechaun from a recycled toilet paper tube.

This science fair project idea explores whether talking to a plant will help it grow.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Here's a writing activity that helps young learners explore an ant's perspective...and practice writing, too!

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.