This science fair project idea investigates which objects float and sink in honey, water, and oil.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project that examines condensation and the conditions needed in order for dew to form.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

In this science fair project, students use the streak test to tell minerals apart from each other.

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

Discover flight initiation distance as you play around in the park with this fun bird watching project!

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this design challenge, your child will create a parachute for a small toy using typical household items.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.