In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project idea explores whether color affects a person's emotional state.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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

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

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Do you think heat can affect a plant's growth rate?

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.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea explores which fruit molds the fastest.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

How do organic materials become soil? This science experiment measures what materials biodegrade.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

The objective of this science project is to determine the length of time for different seeds to germinate.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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

This science fair project idea explores substances that cause a bubble to last longer.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.