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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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.

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

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

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

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Science fair project that determines which foods and drinks contain the highest amount of glucose.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

This science fair project idea determines if the color of light affects the growth of plants.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!