This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea determines which method of hand cleansing is the most effective.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project idea demonstrates that plants give off water.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Science fair project that examines condensation and the conditions needed in order for dew to form.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How powerful is the reaction between baking soda and vinegar? Find out here!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.