Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Using a toy race car kids create a visual model of the Doppler Effect.

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.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.