Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

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

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This science fair project idea identifies trees using a dichotomous key.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

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

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.