Science Buddies
Science Buddies: How Does Soil Affect the P H of Water?
Did you know that soils can be alkaline, neutral, or acidic? Most plants grow best in soil near neutral pH, but some plants prefer slightly acidic and others slightly alkaline soil. What is the pH of the soil in your garden? What happens...
PBS
Nova: Build a Tree Ring Timeline
This activity is an introduction to the branch of science called dendrochronology. Discover what this science tells us about the past and see if you can create a tree ring timeline by matching up band patterns from several different trees.