In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Test whether plants can grow without sunlight and water.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project will help students learn about non-vascular plants, such as mosses.

Find out whether packaged seeds actually do expire in this new science fair project idea.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

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

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

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

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