This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

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

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

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 fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

In this science fair project, students use the streak test to tell minerals apart from each other.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

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

This science fair project idea investigates how color affects temperature.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea experiments with spinning color wheels and optical illusions.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

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