Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project will help students learn about non-vascular plants, such as mosses.

The objective of this science project is to determine the length of time for different seeds to germinate.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Use a dichotomous key to identify plants or animals.

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

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

The objective of this experiment is to evaluate the effects of acid rain on plants.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Here's a way to make history both interesting and relevant: design a garden using plants that were used by people in colonial times!