Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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.

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

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

Bird watching is a fun way for kids to learn about Mother Nature. Make a bird feeder, a bird house, and binoculars and you can attract birds and watch them!

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

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

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

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

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

This science fair project teaches students about wilting and browning of salad greens.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.