This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Encourage your fourth grader to develop their critical thinking and critical writing skills with this Critics' Choice movie booklet for your family.

In this activity, your child will use mindfulness to practice staying as still as they can. Then, during a freeze dance activity, they will pay attention to the constellation of sensations and feelings throughout parts of their bodies.

This science fair project idea compares biodiversity between drops of water.

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.

Give your child a taste of life in Civil War era America by mixing up a batch of old-fashioned cornbread, adapted from a 19th century recipe.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Help your fourth grader affirm her place in the family and in the march of recent history with this family album project.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Children reflect on ways they have cared for themselves, others, and the Earth before building a garden to share beauty with others in their community.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Practice third and fourth grade measurement skills and make a practical holiday gift in the process!

In this design challenge, your child will make a bottle rocket using typical household items.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

With this activity, you'll create a family treasure...and reinforce social studies basics while you're at it!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!