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Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

In this experiment we use Scotch Guard to make sand that resists water.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

This science fair project demonstrates the "power of conformity".

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

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.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Use pepper and soap to discover some fun facts about the properties of water.

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!

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Explore the belief in astrology as a predictive system.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Do different types of oil mix or stack? Find out in this science fair project idea!

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.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.