Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea compares biodiversity between drops of water.

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

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

This science fair project teaches students the differences between fruits and vegetables.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This biodiversity project examines the biodiversity in your own backyard.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.