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Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science project teaches students to classify different shapes of leaves.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This science fair project idea explores substances that cause a bubble to last longer.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

This science experiment tests if dog saliva can really help heal wounds.

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