This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

This science fair project idea tests the efficiency of short term memory.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

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 compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

The objective of this experiment is to evaluate the effects of acid rain on plants.

Construct batteries that make electricity from fruits with this fun science fair project.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Determine whether fresh vegetables have more calories or less calories than canned vegetables.