In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

This science fair project idea investigates whether plants can survive being frozen.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Explore if planting seeds in a certain direction will affect how fast it germinates.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.