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.

In this science fair project, students make their own rain gauge to measure rainfall.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This tactile activity helps kindergarteners learn about texture.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

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!

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

Create a self-portrait from natural materials in this collage craft activity!

In this fun activity, kids practice measurement and boost fine motor skills as they learn all about how fossils form and even make a few of their own!

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

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

Celebrate April showers with a springtime arts and crafts activity: make sparkly, shiny raindrops with your kid.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.