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Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Science fair project that determines whether mass and weight are the same or different.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea experiments with spinning color wheels and optical illusions.

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.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Check out this cool science fair project on identifying rocks and minerals for kids.