Test your friends to find out if you can replicate the placebo effect's incredible results.

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

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

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!

In this activity, your child will be challenged to make a tower using paper cups.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

In this fun activity, your child will create their very own solar oven to bake s'mores!

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.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

In this activity your child will create their very own marble maze!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

Discover whether a metal will expand under hot water.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.