What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

In this science fair project, students make their own rain gauge to measure rainfall.

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

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This project determines what category of person is most likely to be ticklish.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

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 teaches kids experimental design and how to test if subjects can really sense if they are being watched.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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

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

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...