In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

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