Here's a pressed leaf card project that puts science and writing together for your second grader.

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

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science project teaches students to classify different shapes of leaves.

The concept of metamorphosis is fascinating to children of all ages. Help your child's creativity take flight as she makes her very own butterfly life cycle.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea demonstrates that plants give off water.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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 fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.