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Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

In this project students experiment with making music using only glasses of water.

Do different types of oil mix or stack? Find out in this science fair project idea!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This science fair project idea examines the reason boats are shaped and engineered.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Teach your child how butter is created by shaking up cream the old-fashioned way.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project examines how seeds hitchhike on animals and clothing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

An home science experiment for older students that teaches about the science behind heat.

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

This science fair project teaches students about wilting and browning of salad greens.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.