Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Learn all about balance and motion as your child designs a corn maze!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

The objective of this science project is to determine the length of time for different seeds to germinate.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

This science fair project idea investigates if fats add to the flavor of food.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!