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

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

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

Slip some science into storm watching with a homemade rain gauge!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Find out whether putting something on top of a plant will inhibit its growth.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

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

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

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

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

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

This science fair project idea explores whether talking to a plant will help it grow.

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

This project examines the concentration of dissolved oxygen in water, with and without oil.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea explores how length affects the weight a bridge can hold.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.